Help - Trick Flow LS1 Top End Kit Dyno Reults

Hello - this is my first forum so give the older guy a break.

I installed the Trick Flow LS1 top end kit on a very low mile 98 SS Camaro M6 (19k miles). I got the kit that Trick Flow claims is 485 crank HPs and have the following supporting mods:
- Long tube headers - Loudmouth II Exhaust - SLP Flow pack (lid and air scoop) - high flow cats - TB coolant bypass - 85mm throttle body - LS6 intake - blueprinted oil pump - EGR tube cut as to not block intake - 160 thermostat - LS2 timing chain - converted to the "truck coils" - 42lb injectors
- brand new NGK TR55's gaped at .50 put in right before the tune - Thundervolt 50 wires - new valley cover to replace valve cover PCV

So about all the supporting mods are on the car, not a whole lot more to offer right? Install was perfect, no problems. The car runs well, no issues.

I just had it tuned at East Coast Supercharging in NJ this past Friday. Full street tune followed by a dyno tune performed on a DynaPack 4000.

Not excited about the results, 383 RWHP and 376 ftlbs :bs:

Now give it the temp was in the high 90's and it was dry out but still this seems really low. I'm worried something is wrong with the car but the guys at East Coast say it is fine, and with such low easy miles on it I can't imagine if the install was good what else the problem could be. I would think with the mods and the 485 kit I should be getting at least 485 flywheel HP, subtract about 15% for drive train = somewhere in the 405 - 415 rwhp range. I seem to be at least 20 - 25 hp off.

Any thoughts, suggestions, or experiences with this kit would be greatly appreciated. I'm going mad worrying that something just isn't right with my beloved car.

your ls6 intake is choking the system. get a fast 102 with the 102mm tb and watch those numbers skyrocket.

mid you 412hp is about what you would get if that package held true.

id also ask about the injector's duty cycle % ..i bet it is up there

You think 42 lb injectors would have a hard time keeping up with this combo? I thought they seemed kinda large but I'm certainly not the expert.

From what I recall the guys said since the injectors were so large the duty cycle was not topping 60% at WOT. Does this sound wrong?

Thanks again for the input. You really think the FAST intake and 102MM TB would do the trick? How about the FAST with the Trick Flow polished 85mm TB I currently have?

So it sounds like what I am getting is about expected for this kit and I don't have the problem I am imagining in my head?

You can check your injector sizing here - http://www.rceng.com/technical.aspx#...ctor_Worksheet_


I agree with Shady - It sounds like you need to bring in more air. There wouldn't be much of an advantage of putting a Fast 102 intake on and leaving the 85mm tb though. You'd be better off swapping both.

If I installed the FAST and new TB should I have it tuned again? Thanks again for the input!

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Originally Posted by 98SSCamaro

You think 42 lb injectors would have a hard time keeping up with this combo? I thought they seemed kinda large but I'm certainly not the expert.

From what I recall the guys said since the injectors were so large the duty cycle was not topping 60% at WOT. Does this sound wrong?

Thanks again for the input. You really think the FAST intake and 102MM TB would do the trick? How about the FAST with the Trick Flow polished 85mm TB I currently have?

So it sounds like what I am getting is about expected for this kit and I don't have the problem I am imagining in my head?

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oops didnt see you had different injectors already..those are more than enough

I would have it tuned again as the a/f ratios are going to change due to more air being brought in.

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Originally Posted by Knight

You can check your injector sizing here - http://www.rceng.com/technical.aspx#...ctor_Worksheet_


I agree with Shady - It sounds like you need to bring in more air. There wouldn't be much of an advantage of putting a Fast 102 intake on and leaving the 85mm tb though. You'd be better off swapping both.

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x2 ...a 102 mm opening is about pointless with a 85mm tb...you should be running at least a 90mm anyways ..so personally i would dish out the coin and get a fast 102mm combo

Got you. Still all considering I seem to be getting what about what is expected from this kit with an LS6 intake and all supporting mods? I guess Trick Flow fudges those numbers little bit like everyone else.

Remember, manufacturers are going to put the best and highest
#s out that they can - but they can test everything under ideal conditions too. I'd say your #s sound about right.

what are the cam specs with that package?

Right, so 485 crank HP was done with open headers, in a climate controlled environment, running no accessories, electric water pump. . . . . . maybe a little laughing gas floating in the room for good measure.

Read a lot of forums where guys were talking about these kits but didn't see any actual dyno sheets so figured I'd try it out and see what happened. Got a deal on the 485 kit that is the only reason I went with it.

I don't drag race the car or anything and I have to say the torque is impressive, I can drive around in 6th gear all day with the stock 3.42 rear now with no problem. If there doesn't seem to be a problem may just leave well enough alone.

Thanks again all for your input. If you think some are still interested in the actual dyno for a trick flow package I can see if I can figure out how to scan and post mine.

"Camshaft specs are 216/220 duration, .560 in./.560 in. lift, 114 lobe separation angle. 1997-98 model engines require the purchase of centerbolt valve covers. Trick Flow recommends this kit be used with at least 10.5:1 compression and a LS6 or FAST 90mm intake manifold. Aftermarket tuning is required."

Specs above, not a big cam at all, exceptional street manners with just a hint at idle that it's not stock.

Interesting that Trick Flow suggests the use of the LS6 or Fast 90 intake. . . .

yea thats pretty small. your numbers seem ok

onyx rock - looks like you do a bit of racing. Just curious with 383 RWHP and 375 tq and decent launch what would you guess this car would do in the 1/4 mile?

I actually dont do much racing and my 11.88 was first time out with mods in sig. Im guessing if you hook you can reach high 11s of course depending on your location and DA at the track.
Im also not familiar with the dynapack dynos and how they read. If they are similar to the mustang dynos I would say your car should run pretty strong.

Your #s look fine, you have cats on the car, that's an extremely mild cam and you don't have aftermarket heads correct? You should be happy with the 383 all things considered

id imagine he has trick flow heads.

I would be VERY happy without heads. I have the whole Trick Flow top end kit including their 215cc runner CNC Gen X heads. Have high flow cats on it if that makes a difference.

According to the tuner and a a little internet reading for what that is worth the DynaPacks are supposed to be conservative.

Going to find out in a few weeks, found a local place that will do a few pulls on a Dyno Jet for $75. I hear these run a little on the high side but between the two it should give me a good idea. Thanks again.

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Originally Posted by 98SSCamaro

Hello - this is my first forum so give the older guy a break.

I installed the Trick Flow LS1 top end kit on a very low mile 98 SS Camaro M6 (19k miles). I got the kit that Trick Flow claims is 485 crank HPs and have the following supporting mods:
- Long tube headers - Loudmouth II Exhaust - SLP Flow pack (lid and air scoop) - high flow cats - TB coolant bypass - 85mm throttle body - LS6 intake - blueprinted oil pump - EGR tube cut as to not block intake - 160 thermostat - LS2 timing chain - converted to the "truck coils" - 42lb injectors
- brand new NGK TR55's gaped at .50 put in right before the tune - Thundervolt 50 wires - new valley cover to replace valve cover PCV

So about all the supporting mods are on the car, not a whole lot more to offer right? Install was perfect, no problems. The car runs well, no issues.

I just had it tuned at East Coast Supercharging in NJ this past Friday. Full street tune followed by a dyno tune performed on a DynaPack 4000.

Not excited about the results, 383 RWHP and 376 ftlbs :bs:

Now give it the temp was in the high 90's and it was dry out but still this seems really low. I'm worried something is wrong with the car but the guys at East Coast say it is fine, and with such low easy miles on it I can't imagine if the install was good what else the problem could be. I would think with the mods and the 485 kit I should be getting at least 485 flywheel HP, subtract about 15% for drive train = somewhere in the 405 - 415 rwhp range. I seem to be at least 20 - 25 hp off.

Any thoughts, suggestions, or experiences with this kit would be greatly appreciated. I'm going mad worrying that something just isn't right with my beloved car.

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Something does not seem right to me either. Your numbers should be higher.

A few guys suggested that my 85mm TB and LS6 intake are restricting, if I went to a FAST 102 with 102mm TB it would get me in the 410 RWHP range which is about what I would expect if the TF kit puts out what they claim.

This was also done the the worst day you could dyno a car, very hot (almost 100 degrees) and dry.

I wouldn't get too wrapped up in dyno numbers. I'm sure the TF numbers are under ideal conditions plus a different dyno. The bottom line since this is not a track car is are you are happy with the upgrade in torque and the way it drives for the $$$ that you spent? It sounds to me like you are and if that's the case why plunk down another 1k on a new TB and intake just to hit some numbers?

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Originally Posted by rc74racer

I wouldn't get too wrapped up in dyno numbers. I'm sure the TF numbers are under ideal conditions plus a different dyno. The bottom line since this is not a track car is are you are happy with the upgrade in torque and the way it drives for the $$$ that you spent? It sounds to me like you are and if that's the case why plunk down another 1k on a new TB and intake just to hit some numbers?

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because i bet there is at least 20+ of a gain there from that swap...that is a huge gain for the price. it seems a shame to know a good chunk of power is left on the table after buying that pricey top end.

I personally wouldnt worry about the intake and TB before I put a bigger cam in there. If the car runs strong enjoy it for awhile and do some research for future mods. It can get expensive chasing HP numbers.

I hear you, bet if I spent the $350 or so for the bigger cam it would gain at least 20 hp also for a lot less money, at least I think anyway.
$350 Cam + various gaskets and parts $50 + tune $549 = $949
$1000 for Fast setup + tune $549 = $1549

I think for now if I know the car is ok I will drive as is until I think I need more which may be never. The car is 12 years old and I have 19k miles on it so not driven much.

Guess I would ask this, based on those numbers does anyone see where I may have a potential problem? Everything else is fine, no ticking, rapping, banging, no knock sensor retard, plugs look good so far, idles smooth, runs good. . . .

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Originally Posted by 98SSCamaro

I hear you, bet if I spent the $350 or so for the bigger cam it would gain at least 20 hp also for a lot less money, at least I think anyway.
$350 Cam + various gaskets and parts $50 + tune $549 = $949
$1000 for Fast setup + tune $549 = $1549

I think for now if I know the car is ok I will drive as is until I think I need more which may be never. The car is 12 years old and I have 19k miles on it so not driven much.

Guess I would ask this, based on those numbers does anyone see where I may have a potential problem? Everything else is fine, no ticking, rapping, banging, no knock sensor retard, plugs look good so far, idles smooth, runs good. . . .

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wait to do cam and intake at once so you dont pay for a tune twice.

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Originally Posted by 98SSCamaro

I hear you, bet if I spent the $350 or so for the bigger cam it would gain at least 20 hp also for a lot less money, at least I think anyway.
$350 Cam + various gaskets and parts $50 + tune $549 = $949
$1000 for Fast setup + tune $549 = $1549

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not quite. your ls6 intake is a restriction right now with your cam...so you cant continue to throw a bigger cam in your car and expect good gains..you will just choke out your new bigger cam even more. no one here will question the fact that your tb/ls6 is the bottleneck in your system as is. you add a larger cam and you will not gain much...if you go bigger you will need to go to a fast setup period

Good point to do both the intake and cam at the same time to save on the tune!

I'm not doubting the intake is my restriction, confirmed with the shop that my intake vac was high in the upper RPMs which I guess indicates it was sucking hard. I was just tossing the cam out as a thought, I understand the right way is to remove restriction then go bigger if you like.

Think I am happy where i am as long as I think the car is ok.

If someday I think I need a bigger cam then I'll go with a FAST intake and TB along with it but I just don't think I'll miss the potential 20HP more than the $1550 it will cost me to get it at this point.

Any alternatives to a FAST setup that doesn't cost half as much as my heads or is FAST the end all be all of the LS intake world?

There are other manufacturers who make larger intakes and t/bs, but Fast makes a good product for the money - you can go custom but you pay a lot more - ask me how I know....

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Originally Posted by 98SSCamaro

Good point to do both the intake and cam at the same time to save on the tune!

I'm not doubting the intake is my restriction, confirmed with the shop that my intake vac was high in the upper RPMs which I guess indicates it was sucking hard. I was just tossing the cam out as a thought, I understand the right way is to remove restriction then go bigger if you like.

Think I am happy where i am as long as I think the car is ok.

If someday I think I need a bigger cam then I'll go with a FAST intake and TB along with it but I just don't think I'll miss the potential 20HP more than the $1550 it will cost me to get it at this point.

Any alternatives to a FAST setup that doesn't cost half as much as my heads or is FAST the end all be all of the LS intake world?

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well enjoy your car and have fun..that is all that really matters

Thanks everyone for your input, greatly appreciated. Good bunch of folks here glad I joined!

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Originally Posted by 98SSCamaro

Thanks everyone for your input, greatly appreciated. Good bunch of folks here glad I joined!

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:yup: glad to have ya

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Originally Posted by shady milkman

because i bet there is at least 20+ of a gain there from that swap...that is a huge gain for the price. it seems a shame to know a good chunk of power is left on the table after buying that pricey top end.

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20hp for another 1k in parts plus tune is not worth it IMO and I don't think it's out there either with that small cam. There is almost always something left on the table, using that logic after spending the 1k+ for the intake and TB why not throw a bigger cam in there and pick up a 100HP for another $500-$600 plus tune? If he's happy no need to worry about numbers at the end of the day dyno numbers are no good for anything but shit talking.

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Originally Posted by 98SSCamaro

Thanks everyone for your input, greatly appreciated. Good bunch of folks here glad I joined!

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Great site there is a wealth of info on here. Congrats on your purchase those are great heads!

I bet it drives like a dream with that baby cam! I have had their packages come in at what the owners seem to think is a little soft before as well. Out of all of their packages, even the 'biggest' cam is relatively conservative.

How many CC's are the chambers on those heads? What head gasket (or better yet, what is the installed height of them)? With that baby cam, DCR should be high and it should be pretty torquey.

Let us know what your dynojet numbers are; I am relatively familiar with those :)

Certainly will, scheduled for a dyno run next Friday, the 13th of all dates.

The heads are stock trick flow Gen X CNC version 215cc runners, 64 cc combustion chamber with LS6 triple metal head gaskets (not sure on their height) Spoke with the folks at trick flow several times, very friendly, they say this CC chamber and the LS6 gaskets provided in the kit should yield between 10.5 :1 to 10.55 : 1 compression on a stock LS1 bottom end without shaving the heads any. Tuner did mention based on the cam specs that there is a lot of dynamic or static (forget which or maybe they are the same) compression which they tell me helps torque.

The tuner seemed to like the car, drove it several times and seemed to get a kick out it. Couldn't get over how smooth it was but according to him when he punched it in 4th gear it would still lift the nose of the car. Said it didn't care what gear it was in, which I noticed doing like 45 mph in 6th gear at what seemed like just above idle with no bogging or bucking.

I will not argue it has nice torque and after having many older cars with large cams I'm just not into the choppy lope any more. Sounds good, makes a lot of top end power but you end up having to run steep gears, it's rough at idle rattling everything loose in the car, just looking for something a little more refined with decent punch. Even though the cam is small the heads are supposed to be great and really looking at it from stock I still saw a huge gain, like a totally different car. Guess in my mind kinda like a "sleeper" of sorts, looks like a clean low mile 4th gen SS but has a nice punch to it. I'll figure the whole picture thing out here eventually and post up some pics and the dynos (which seems to require mastering the scanner).

Not looking to talk trash esp over dyno numbers, just not into chatroom fighting or armchair racing or whatever they call it now. I could have built a dyno queen and knowingly did not.

I guess trying to use the dyno as a "tool" and this being my first partial build on anything newer than a gen 1 engine I took what Trick Flow rated at face value and things just didn't add up. As I have not even touched a gen 1 engine for at least 10 years and nothing fuel injected I thought something was done wrong on my part possibly causing the reduced output.

Ran cylinder leak down test on all cylinders, checked plugs many times and have the box of band aids to prove it, double and triple checked everything. I took my time, cleaned everything, replaced every part I took off with a new one (oil pump, water pump, timing chain, belts, hoses, gaskets. . . . ) used the proper tools, took about two months from start to end and it just seemed to not add up.

Guess I'm just a bit on edge and wanted to be assured my results were common so I don't go into heart failure worrying about this.

Thanks again to the many fine folks who patiently helped me out.

Just wondering could the brand of dynos that you used maybe supply different rwhp numbers than which tfs used? Numbers look good though

No doubt about it. TF rates the kit at 485 HP at the crank not at the wheels. My dyno was done at the wheels on a Dyna Pack dyno. I was just doing a rough calculation, 485HP - 16% power train loss for an M6 is about 407 RWHP not even counting the other supporting mods so just seemed like I was missing the mark by 20+ HP thinking I did something wrong.

Going to run on a Dyno Jet dyno next week just to see what it says since a lot of guys are familiar with those. Not overly concerned with the Dyno numbers, again just thought that since I missed the mark by so much I did something wrong is all.

Anyway to post that dyno graph? What rocker arms do you have? Since the TF's need aftermarket ones some people cheap out and I have heard some of the rocker arms kill the top end.

I would love to post the dyno but I don't have a place to host the picture. If you like send me an e-mail and I will e-mail the dyno back to you this evening.

The lines are very smooth, no sudden drop offs. Torque is about as flat as it can get starting around 315 - 320 and going up to 375 around 3800 staying there until about 5300 or 5400 RPM then drops off gradually into the 315 range or so at 6200 rpm. HP climbs steady and smooth increasing through the RPM band until hitting 378 - 383 HP in the 5200 range and stays there flat until after 6000 where it drops to around 350 HP. Tried to describe it if that helps.

I bought the complete TF Top End Kit which included Harland Sharp full roller rockers, stock 1.7 ratio.

The entire top end is brand new, bottom end is stock with 19k miles. Kit came with proper push rods, rockers, double valve springs, literally every top end part short of the intake. I checked and rechecked the valve train geo was correct, verified pre-load on the lifter / spring, and had a friend of mine who is a professional mechanic verify for me, all seemed right with the valve train.

Hope this works, attached picture of my car in signature.

Those numbers don't sound that bad for as mild as the cam is.

I'd get in touch with the manufacturer that makes that set up and ask them what they would recommend for a more "extreme" cam.

The more extreme the cam is, (depending on the specs), it'll make more power under the curver and it might buck a bit too. Depends on how much you want to put up with and you are just talking peak HP numbers.

You really shouldn't get so caught up in numbers.

No doubt about it, you can make more power with a bigger cam in that setup, just make sure it works well with your heads.

The numbers sound right to me.

Unless you have thousands just burning a hole in your pocket, I wouldn't worry about the intake/tb just yet.

But that's just me.

Think I was just a bit neurotic after the self build is all. Was trying to use the dyno numbers as an indicator if all was well with the engine and ignoring common sense.

I guess if it made it through a series of dyno pulls to red line and the 2 + hour drive home and still made 383 RWHP can't be anything that wrong with it right?

No reason what so ever to suspect a problem other than dyno numbers, the fine folks here have helped me see the light on that. For some reason I ignored the smooth idle, clean plugs, no tapping, just had no reason to suspect a problem other than I did the work and the dyno was lower than what I thought it would be.

Thanks again everyone. Working on a way to possibly post the dyno sheets just for those curious what a TF 485HP top end kit will do.

Man i'm awesome:D

http://i390.photobucket.com/albums/o...z28/Dyno02.jpg

http://i390.photobucket.com/albums/o...z28/Dyno01.jpg

Awsome! Thank you!

Maybe I missed it somewhere, is this an automatic or 6 speed?

Numbers are a bit low, but for that type of dyno, I wouldn't expect much more. Post up numbers if you go to another dyno...

Only thing I would question would be the pushrod length - was the preload checked to make sure they are not too short or too long?

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Originally Posted by LSXZ28

Maybe I missed it somewhere, is this an automatic or 6 speed?

Numbers are a bit low, but for that type of dyno, I wouldn't expect much more. Post up numbers if you go to another dyno...

Only thing I would question would be the pushrod length - was the preload checked to make sure they are not too short or too long?

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I am pretty sure they came with the kit..it would be odd for them not to be correct lengthed

This top end kit has not impressed me on the 3-4 that have come through here...

I had an RX7 swap yesterday with a forged 383 M6 and the TFS 515hp top end kit and a Fast 92/92. With the elbow in front of the TB that swap guys use it would only make 406/378. With the elbow (and MAF ) off and in SD it only did 417/384. The car has the mid-length stainless headers that are popular with this swap. I was expecting at least 450/410-ish out of the setup. No tuning on earth was going to get it there though.

With the same top-end kit on an LS1 M6 F-body with an LS6 intake, it was a struggle to get 390rwhp.

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Originally Posted by Frost

This top end kit has not impressed me on the 3-4 that have come through here...

I had an RX7 swap yesterday with a forged 383 M6 and the TFS 515hp top end kit and a Fast 92/92. With the elbow in front of the TB that swap guys use it would only make 406/378. With the elbow (and MAF ) off and in SD it only did 417/384. The car has the mid-length stainless headers that are popular with this swap. I was expecting at least 450/410-ish out of the setup. No tuning on earth was going to get it there though.

With the same top-end kit on an LS1 M6 F-body with an LS6 intake, it was a struggle to get 390rwhp.

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So it sounds like badass2000ss experience with 440ishrwhp on shorties is a rare occurrence then? Is it the cams or are the heads not as great as the afr's? I know someone with a 408, some "giant cam", trickflows and the guy isn't even in the 500rwhp range. Claims he can't rev it past 5600rpm's also. He has a tune.

I don't know, but on my dyno, a full weight F-body that makes 440rwhp will trap 124-125.

I recently had a 427 LSX (6-bolt with 6-bolt CNC trick Flows) that is only 9.2:1 SCR (no blower yet, N/A tune)... with heavy truck wheels and an M6 trans it made 419rwhp through shorties and stock Y-pipe. It got long tubes and real Y pipe and it jumped to 522rwhp.

I have NEVER had a stock cube LS1 with shorties make over 400rwhp here. This isn't a happy-dyno though.

It's an M6
Correct push rods were shipped with the complete kit, the HS roller rockers that come with the kit are torque to yeild and not adjustable but I did check preload etc anyway and all looked good.

Did alot of research on these heads and a lot of guys are getting high numbers and good ET's using them. Not into flow numbers all that much but I guess they do well there. From what folks are saying the TF cams in these kits are very conservative. They put out great torque but seem to run out of steam on the high end HP. These heads with a custom or at least more aggressive cam apparently make great power. For me the mild cam works, exceptionally nice to drive on the street, no bad manners what so ever.

Supposed to have a few Dyno Jet runs Friday if it doesn't rain, will post results for sure.

From what I am hearing I should be pretty happy with what I got from the Dyno Pack and most likely I do not have a problem. I am running the "485 HP" kit with the 216/220 .560 / .560 114 LSA cam.

Yeah, that's a baby cam! At least when you get bored with it and want more power, a cam swap is easy ;)

Agreed, speaking as a mechanical savvy person touching an LS / Gen III for the first time the whole project was straight forward and not that diffucult. Having done it once and really taking my time the cam swap alone would not take more than a Saturday for sure.

Thanks again. Happy for now and feel better that all is well. Maybe one day I'll get the itch for a bigger cam I hear that happens. Sounds like the way to go in the furture is a bigger cam with a FAST intake / TB. Have to see how the factory 10 bolt holds up with what I have now but again I put so few miles on it may last a lifetime.

Ok I know this post is old and I'm reviving it from the dead. But I stumbled across this and just want to comment with my experience. I have a 95 Camaro that I swapped a 2000 LS1/4l60E with the Trick Flow 500HP top end kit also. Also tuned by Mr. Steve Frost. I did this all between Thanks Giving and Christmas back in 2012. (A lot of planning involved) The LS1 has 42 pound Bosch injectors, long tube headers, LS6 intake, 90 mm throttle body, and the for mention Trick Flow top end kit. specifics about the kit can be found here. https://www.trickflow.com/parts/tfs-k306-500-460 . The cam spec are identified it the link but run 575/575 at 220/224 respectively. I installed the cam at 1 degree advance and drove it gingerly over to Steve's for tuning. We did some slight tweaks to the throttle body (small hole drilled into the TB butterfly plate) and removed the screen to the stock MAF sensor, the best radius elbow i could fine. Fuel pressure is at 60 psi and steady. Steve worked his magic with seemed like 15+ dyno pulls. (good thing i didn't nail it before the tune because it was so far off) but the max hp and torque came in at 375 RWHP and 375 ft lbs. So with my modified automatic (shift kit and 3500 stall converter) my guess is that I am right in line with 98sscamaro's numbers.

I will also add my experience with the GenX kit installed in my 2001 Trans Am WS6 as this was one of the few posts that I could find when I was considering the upgrade. I installed the LS1 485hp kit along with TSP long tubes, a Racetronix 340LPH fuel pump, Ford 9 in rear end with 4:10 gears and a Monster stage 2 clutch. Injectors are stock with ported throttle body. My final numbers were 383 hp/385 tq. Through open headers it was 412 hp/399 tq. I am running cats to a Magnaflow exhaust along with an LS6 intake. Car is a blast to drive!

x2 ...a 102 mm opening is about pointless with a 85mm tb...you should be running at least a 90mm anyways ..so personally i would dish out the coin and get a fast 102mm combo