in your mind what is the best bolt on exhaust?

[Zboner]

as the title states?

[Sarge]

Tough one....Kooks or Stainless Works....I have the SW Long Tubes but have seen excellent fit and dyno/track results with Kooks lately....

[Zboner]

i cant even come close to affording those now, i mean like Borla, Corsa, LM. like that, i have to either buy a new LS1/2/6 or have mine totally rebuilt.

[MadSeason]

My Personal Preference is the Hooker Aerochamber, had it on my camaro and bought a car with the SLP loudmouth and had to change that over. Sound just reminds me of the old 70s muscle cars. I want to say www.ls1sounds.com is a site where you can listen to different exhausts, but I'm not positive right now

[mcamp001]

best for what? Looks? Price? sound? fit and finish? The question is pretty general, but frankly , I can't see why anyone would put anything other then Stainless headers on their cars. Coated or not, metal ones WILL rust sooner or later. I have the Stainless Works headers and chammbered exhaust and I think it is one of the best sounding ones for an LS1, but this is my opinion

[ibanez7]

No budget.
HANDS DOWN..

GMMG Chambered exhaust. Its the most expensive, best sounding(mean muscle car) with amazing flow. Plus the install looks very clean under the car.

http://www.gmmginc.net

Kook headers w/ceramic coating.
Stainless works headers


With a budget.
Flowmaster and an exhaust cutout.
Hooker headers, ceramic coated (mid-priced)
Flowtech headers, ceramic coated (budget priced)

[BlackHawk T/A]

Wouldn't the Rumbler sound about the same as the GMMG?

[OneBadZ]

pacesetter headers, offroad y-pipe w/o cats, one bullet muffler dumped before the axle

pacesetter is the one of the better headers for the price.
y-pipes arent that hard to make, cheap $.
bullet mufflers are cheap $.
and you will be taking ALOT of weight off the car

[bbfirebird]

In my opinion, Borla makes the most quality exhaust system. Plus the fact that it is adjustable is awesome. I'd really love one, but I have a problem shelling out $700 for a catback.

[bww3588]

thats how much the GMMG costs.

[LIGHTS_OUT]

I have SLP Long Tubes,SLP offroad y-pipe w/o cats and Borla catback..I love my setup..:thumbup:

[kimchi_xtreme@yahoo.com]

best hands down is anything that is custom built for your setup. No two engines are the same and therefore there is no absolute best except for custom made exhaust. You can list as many manufacturers as you want but a custom bent header/exhaust will always be best. You will need every little bit of information about the engine that the exhaust is being built for. I had custom headers made for a drag vehicle and it has paid for itself more than once. if your wondering the headers were 1500 each and each primary is the optimun length for the cylinder it serves.

[Liquifire]

no one likes the Bassani true duals? I know it is expensive as hell.....but it looks good and from everything I have heard it sounds good too......check out www.ls1sounds.com

[silverTA2002]

Best bang/buck is just a muffler swap. They sound the same, and make the same power as catbacks, but cost 1/2 to 1/4 as much.

I went with a dynomax ultraflow muffler. Cheap, sounds great (deep, mellow, no drone or rasp, screams at WOT), and it'lll outflow pretty much any muffler out there (it's a straight through design).

[kimchi_xtreme@yahoo.com]

a muffler swap will not produce the same level of power gain as will an acutal catback exhaust. Exhaust system is "tuned" Your exhaust is actually extremely complicated and if not tuned properly you will actually lose power rather than gain. Anything you do to an engine has to be in tune or it will rob you of power. A vortech supercharged 03 mustang gt with the aftercooler(water injected) will net about 320 hp at the wheels with a bassani x-pipe catback exhaust. I know this as I have built this mustang and did the dyno tests. Just by adding a throttle body spacer I saw a loss of 30 hp and 20 ft. lb of torque. adding a bigger throttle body brought the total to 40 hp and 60 ft. lb of tq loss. An additional 10 hp and 23 ft. lb of tq was loss by adding ice into the water tank to see if dropping the intake charge temp would do anything.

Once I tuned it with my laptop I regained the lost power and then some but not anything impressive. The owner of this vehicle was not impressed at the claims he was misled by.

The way an exhaust works is almost an art form. Everytime your exhaust gasses experience a pressure drop it causes a reversion pulse that actually pulls the exhaust gasses. This happens when exhaust gasses go from you primary tube to the collector then from the exhaust pipe to muffler and finally exhaust tip to atmosphere. A poperly tuned exhaust will actually allow your engine to excavate the spent gas efficiently and almost have a supercharging effect. A properly tuned intake and exhaust can actually allow your engine to have as much as 130% volumetric efficiency. A simple "bolt-on" does not always benefit and may cause harm.

I could try to better explain exhaust theory but would rather not take the time as it is very lengthy. but if you have a specific question I will be more than happy to try and help out.

[mcamp001]

well, I still think you should pick an exhaust combo for the sound, especially for the street. What's the point if you pick combo "x" because it makes 5 more HP, but you hate the ways it sounds all the time? You will not notice that 5hp as much as you will that sound which will always be the same. Just MHO.

[MarkuzLS1]

I love my Corsa cat-back. With it and an SLP air-lid I gained 17hp. It looks awfully awesome, too...

http://webpages.charter.net/mwin/BlackCar/DSC00548small.JPG

[Ric]

Best hands down???

TRUE DUALS

[silverTA2002]

a muffler swap will not produce the same level of power gain as will an acutal catback exhaust. Exhaust system is "tuned" Your exhaust is actually extremely complicated and if not tuned properly you will actually lose power rather than gain. Anything you do to an engine has to be in tune or it will rob you of power. A vortech supercharged 03 mustang gt with the aftercooler(water injected) will net about 320 hp at the wheels with a bassani x-pipe catback exhaust. I know this as I have built this mustang and did the dyno tests. Just by adding a throttle body spacer I saw a loss of 30 hp and 20 ft. lb of torque. adding a bigger throttle body brought the total to 40 hp and 60 ft. lb of tq loss. An additional 10 hp and 23 ft. lb of tq was loss by adding ice into the water tank to see if dropping the intake charge temp would do anything.

Once I tuned it with my laptop I regained the lost power and then some but not anything impressive. The owner of this vehicle was not impressed at the claims he was misled by.

The way an exhaust works is almost an art form. Everytime your exhaust gasses experience a pressure drop it causes a reversion pulse that actually pulls the exhaust gasses. This happens when exhaust gasses go from you primary tube to the collector then from the exhaust pipe to muffler and finally exhaust tip to atmosphere. A poperly tuned exhaust will actually allow your engine to excavate the spent gas efficiently and almost have a supercharging effect. A properly tuned intake and exhaust can actually allow your engine to have as much as 130% volumetric efficiency. A simple "bolt-on" does not always benefit and may cause harm.

I could try to better explain exhaust theory but would rather not take the time as it is very lengthy. but if you have a specific question I will be more than happy to try and help out.

That's all fine and dandy, but the difference (dyno tested multiple times) between a full catback, and just a muffler swap, is only a couple HP, if any at all.

Now, if we were to compare a muffler swap to a full true dual exhaust..... that's a different story.

[CamaroKillZ28]

I was told that you could possibly lose backpressure from true duals. Can anyone tell me otherwise, by dyno #s or back pressure tests?

[ibanez7]

Best hands down???

TRUE DUALS

true duals are great only if you dont plan on going with a turbo build. Then they are useless

[MadSeason]

true duals are great only if you dont plan on going with a turbo build. Then they are useless

True Dules are useless on our 346ci engines, they only provide real worth buying gains if you have a big cubed motor. Otherwise you could end up with to little backpressure and actually hurt your system. If you're one of the lucky ones you'll just end up with a setup as worthy as the less expensive Y pipe route.

[BlackHawk T/A]

True Dules are useless on our 346ci engines, they only provide real worth buying gains if you have a big cubed motor. Otherwise you could end up with to little backpressure and actually hurt your system. If you're one of the lucky ones you'll just end up with a setup as worthy as the less expensive Y pipe route.
Not true...if the pipe is sized correctly an X can and WILL outperform the Y.

IMO the best setup (and what will be on my car):

Pacesetter LTs -> Random Tech Cats -> X-Pipe -> Chambered pipes (such as the Sweet Thunder type) - After that you can do whatever you want

I would think 2.75" would be best for a stock engine, and a heads/cam car could benefeit from a 3" system although even 3" should be plenty for an engine with 50 more cubes.

[MadSeason]

I never said a Y pipe was better than an X on the stock cubed engine. I said True Duals only provide "real worth buying" gains if you have a big cubed motor. Which IS true. The gain from an X pipe on the stock engine size isn't worth the added expence of an x-pipe. you only see 6-12RWHP from it.

You are right about size if someone does go with an x-pipe though. Rule of thumb is < 500HP, 2.75" X exhaust... > 500 HP, 3" X. Anyone going with TD's should look into Basani or dumps before the axels (which IMO creates a very noisy cabin)

I want to run true duals myself, just not going to do it with my H/C setup right now

[MadSeason]

I was told that you could possibly lose backpressure from true duals. Can anyone tell me otherwise, by dyno #s or back pressure tests?

True Duals increase scavenging over the Y pipe and thus helps pull the exhaust out of the motor better than the Y. More HP... Just not worth the gains IMO with 346ci. A Bigger exhaust setup isn't always better

[Snake Eater]

What do you all think of the Magnaflow catback? How much less performance is magnaflow compared to the top brands such as corsa, borla, etc..? Is this a good catback to run through a h/c setup?

[Zboner]

ok, i have decides to go with pacesetters l/t's and 3 inch duals before axel, im putting a cam in it, and rebuilding the engine and valve train, and LS6 intake.

[MadSeason]

Zboner, depending how agressive your cam it that will sounds pretty mean....

Snake Eater, check out www.ls1sounds.com All the exhausts your mentioned have about the same flow and HP gain, the only thing really more free flowing is SLP's loudmouth and less free flowing would be flowmaster or stock. Pick something you don't mind hearing all day as you're not going to notice the little differences between what you listed. All are worthy of a h/c setup

[Snake Eater]

Zboner, depending how agressive your cam it that will sounds pretty mean....

Snake Eater, check out www.ls1sounds.com All the exhausts your mentioned have about the same flow and HP gain, the only thing really more free flowing is SLP's loudmouth and less free flowing would be flowmaster or stock. Pick something you don't mind hearing all day as you're not going to notice the little differences between what you listed. All are worthy of a h/c setup

Yeah thanks, i've checked out the site before. I was just asking, because I own the magnaflow and was a little curious as to how it would sound with a cam. My combo - pacesetter lt's / tsp ory / magnaflow catback

[minesfaster]

I am going to be buying the CME tips and valance. I want to go true dual but as i read this thread it makes me not want to switch over to true dual. SO what you guys are pretty much saying is that if somone were to choose true duals over a y pipe with a single muffler you wouldnt see any additional gains except for maybe 5 hp or so? Why is dual echaust too much for a ls1 but not too much for a 4.6 GT ?
is there any links or sites that i can go to to read up more about figuring out what is going to benefit my car the best for the most HP ?

[scott5]

I love my slp loudmouth

[MadSeason]

I love my slp loudmouth

mine was.. OK with my car until i got longtubes and an ORY.. now I've gone back to hooker

[nhraformula]

That's all fine and dandy, but the difference (dyno tested multiple times) between a full catback, and just a muffler swap, is only a couple HP, if any at all.

.
its been many of times tested.
i was one of those guys long ago that just swapped a muffler and gained 7rwhp.

[nhraformula]

I was told that you could possibly lose backpressure from true duals. Can anyone tell me otherwise, by dyno #s or back pressure tests?

losing backpressure is no big deal.
if it was a big deal, top full race cars wouldnt be using open headers.

[nhraformula]

What do you all think of the Magnaflow catback? How much less performance is magnaflow compared to the top brands such as corsa, borla, etc..? Is this a good catback to run through a h/c setup?
all aftermarket catbacks will net you about the same power.
i have the hooker exhaust on and really like it.

[Zboner]

waking up a dead thred

[fuelslut]

heyhow much did that corsa cat back run you the double dual tips look sweet.

[BBATCAR]

Best bang/buck is just a muffler swap. They sound the same, and make the same power as catbacks, but cost 1/2 to 1/4 as much.

I went with a dynomax ultraflow muffler. Cheap, sounds great (deep, mellow, no drone or rasp, screams at WOT), and it'lll outflow pretty much any muffler out there (it's a straight through design).
:yup:
Used left over money for other mods :burnout:

[Albizo66]

Why is dual echaust too much for a ls1 but not too much for a 4.6 GT ?


Because 4.6 Mustangs come with dual exhaust stock, our camaro's don't.

[Kyle C]

Supermaxx LT and Hooker Catback with no complaints

[Brandon35thSS]

i love my loudmouth!!

[MadSeason]

I Ditched my Loudmouth for a Hooker, So much more happier

[01ss#5536]

I love my GMMG