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Thread: True Duals vs. Y
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02-19-2006, 01:24 PM #1
True Duals vs. Y
What advantages are there in having a true dual exhaust system in comparison to going with the Y-pipe design? Is the only "advantage" being able to say you have true duals while hardly anyone else does (in relation to how many have Y-pipes)? I was considering going with the true dual design, but if there are no real "pluses" in doing so, then...
Thanks,
Tyler
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02-19-2006, 01:46 PM #2
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black- 2000 nhra edition formula
youll make alittle better power under the curve.
peak h.p, both systems make about the same.2000 nhra edition formula
a few bolt ons, 379 rwhp
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02-19-2006, 02:19 PM #3
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Slight better peak and curve power. Better sound IMO. And "can" be cheaper. Depends on the setups though.
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02-19-2006, 02:37 PM #4Originally Posted by ~redlinels1~
When I was 20, I loved it - the sound set off car alarms, and got a lot of attention. Some of it good, some of it bad.
What other mods do you have. If you are stock or mostly stock, it woudn't be worth it in my opinion.Hammer - hammertime.us
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02-19-2006, 02:41 PM #5
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Originally Posted by hammertime
The price sky rockets as soon as you mention over the axle.
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02-19-2006, 03:39 PM #6
Well my last car had the stock manifolds with an off-road H-pipe with Flowmaster 40 Series dumped right before the axle. I had spare change in my cup-holder getting airborne just from the drone. But that was coming from a 2002 4.6L Mustang. I can imagine the drone is even worse on a car with 1.1L more.
I don't even have the car in my possession yet. I am having a friend deliver the vehicle to me in a few weeks (it's about 900 miles away...haha). As far as I know, it is a completely stock '99 SS with a Hurst shifter. I plan on lowering the car a considerable amount, so I would guess that going with true-duals could affect ground clearence a good bit going under the axle if I did not dump?
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02-19-2006, 04:30 PM #7
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Black- 1998 Pontiac Trans Am
Depends how good the shop is that does the work. Ive seen a few lowered 2'' with plenty of clearance with duals.
Also, I might as well throw this in but duals wll limit your options for a torque arm. Most trans mounted arms will work but many tunnel mounted arms wont. The only one I know of that doesnt seem to have problems with duals is the aslton TA...and that piece cost a pretty penny.
Unless of course you get the TA 1st and have them build around it.Last edited by ~redlinels1~; 02-19-2006 at 04:38 PM.
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02-19-2006, 04:46 PM #8
So it would probably be best to go with a Y-pipe for compatability reasons with other aftermarket parts? I would assume that most companies are making their designs to go along with a Y-pipe seeing that that is what mostly everyone uses
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02-19-2006, 06:06 PM #9
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I think it would save you a headache going with a y-pipe but duals shouldnt be a limiting factor. It also depends how extreme you want your car to be. If you'll be happy with a typical aftermarket trans mount TA and standard SFCs duals wont be hard to work around. If you want a tunnel mount TA and diamond style SFCs it might become a problem.
Or...like I said before. Get the suspension upgrades first and start taking your car to shops to see if they can work around it...which probably wouldnt be a bad idea regardless what parts you go with.
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02-19-2006, 06:32 PM #10
if you want loudness get the SLP loudmouth and it'll sound deep but very loud when you get on it WOT (wide open throttle)
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02-19-2006, 06:33 PM #11
Alright. I suppose it would be better for me to get the car first before I start doing all of this though...
Thanks!
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02-19-2006, 06:35 PM #12Originally Posted by ss~zoso~ss
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02-19-2006, 06:37 PM #13
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Yes you can. My advice? Stay away from the loudmouth if you get headers. It sounds awesome by itself...but its rasp city with headers.
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02-19-2006, 06:47 PM #14
here's what happens when you go from a y-pipe single exhaust to tru-duals. this was on the wife's car. has bassani headers with the matching catted y-pipe to a borla exhaust. removed the y-pipe and added the bassani tru-duals which comes with a x-pipe. the bassani tru-duals goes all the way over the axle and out back.
Last edited by mrr23; 02-19-2006 at 06:50 PM.
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02-20-2006, 07:37 AM #15Snake EaterGuest
not meaning to jack this thread, but about how much clearance will a 1-2'' drop see w/ td's? I'm really considering switching my ory+cb to td's, but i'd also like to lower my car.
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02-20-2006, 09:07 AM #16
You're not jacking the thread. I am curious about the same I found this on LS1tech.com and he says that he has even more clearance going under the axle than he did with his standard over the axle Y-pipe Here, check it out: http://ls1tech.com/forums/showthread.php?t=442348
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02-20-2006, 09:11 AM #17Originally Posted by ~redlinels1~
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02-20-2006, 09:19 AM #18
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You want an x-pipe for the scavenging effect. The best sounding muffler would be sweet thunders but they dont flow as well as others so they become a restriction at higher power levels. A good sounding muffler that flows very well is the flo-pro twister. The best flowing would be a traditional bullet style muffler but it may not sound the best...but sound is subjective so you may like it.
As for me, Ill be getting flo-pro twisters when I get duals.
Like I said before...if the shop knows what theyre doing clearance wont be an issue.
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02-20-2006, 12:05 PM #19Snake EaterGuest
Dynomax bullets are the loudest/deepest and flow the best. Moroso is a bit quieter, and the sweet thunders just scream at WOT, although being a little more restrictive than the two. With either muffler choice, it's not going to be more than a 2-4 hp gain.
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02-20-2006, 01:19 PM #20
Well with such a small difference in power between mufflers, I would much rather go with the best sounding one. Sound by itself is a good enough reason to swap out exhaust systems
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