Exhaust Setup For LS Swaps
Exhaust Setup For LS Swaps What exhaust setup is everyone running with their LS Swaps? I have searched all of the internet trying to figure out what would work best for my 65 Cutlass with a heads/cam'd Gen IV 6.0. I think I have narrowed it down to these setups but would like to get opinions from everyone who has had experience with the setups below. For everyone's reference I am looking for something that is an aggressive and intimidating. Thanks for all of the help.
LTs, X/H Pipe, with Sweet Thunders dumped before the axle
LTs, X/H Pipe, with Dynomax Bullets dumped before the axle
LTs, X/H Pipe, with Borla XR-1s dumped before the axle
LTs, X/H Pipe, with Flowmaster Outlaws dumped before the axle
LTs, X/H Pipe, with Flowmaster Super 10 dumped before the axle
LTs, X/H Pipe, with Sweet Thunders dumped before the axle
LTs, X/H Pipe, with Dynomax Bullets dumped before the axle
LTs, X/H Pipe, with Borla XR-1s dumped before the axle
LTs, X/H Pipe, with Flowmaster Outlaws dumped before the axle
LTs, X/H Pipe, with Flowmaster Super 10 dumped before the axle
TECH Enthusiast
Joined: Nov 2011
Posts: 609
Likes: 6
From: jacksonville,fl
Everyone will have a different answer.
First of all, long tube headers will give the most power & performance sound, so you got that.
X- pipe will give marginal performance increase with sometimes raspier sound than an h- pipe, which can sound a hint deeper. It is most preferred though & I like the x better than my previous h..
Mufflers themselves will be most opinionated answer & the actual vehicle itself will make a difference also.
Also to consider is actual use of vehicle. Pipes dumping under car will make it louder inside of car, which if you ever plan on long trips would be more annoying after a while than tailpipes.
I 'll later be switching to slightly quieter mufflers (pypes racepro) & a better new cutout setup for more versatility. That way I can have loud as F or normal acceptable loud. Years of loud sounds can change your opinions on things. Loud can be wonderful, but can get annoying .
First of all, long tube headers will give the most power & performance sound, so you got that.
X- pipe will give marginal performance increase with sometimes raspier sound than an h- pipe, which can sound a hint deeper. It is most preferred though & I like the x better than my previous h..
Mufflers themselves will be most opinionated answer & the actual vehicle itself will make a difference also.
Also to consider is actual use of vehicle. Pipes dumping under car will make it louder inside of car, which if you ever plan on long trips would be more annoying after a while than tailpipes.
I 'll later be switching to slightly quieter mufflers (pypes racepro) & a better new cutout setup for more versatility. That way I can have loud as F or normal acceptable loud. Years of loud sounds can change your opinions on things. Loud can be wonderful, but can get annoying .
Last edited by jlcustomz; Jun 24, 2019 at 10:17 PM.
In my experience, add Spin Techs to your list.
Last edited by Michael Yount; Jun 25, 2019 at 06:57 AM.
On The Tree
Joined: Nov 2013
Posts: 106
Likes: 3
From: Omaha, NE
I have a 6.0 with a Cam Motion 227/232 cam, Doug's long tubes into a 2.5" mandrel bent full length set of pipes with magnaflow mufflers exiting out under the bumper on my 71 Cutlass. At idle and under 1/4 throttle it is very mellow sounding and the exhaust can just barely be heard at steady highway or interstate speeds. That said, anything over 1/2 throttle and they are LOUD!!! Ear peircing, hear you loud and clear from half a mile away or more kind of loud if you pin the throttle. I wouldn't consider dumping the exhaust under the car myself, and am likely going to be swapping in quieter mufflers in the future. Exhaust note is all about personal taste, but even at a young 38 years old I am more concerned with the performance than grabbing attention with noise.
TECH Enthusiast
Joined: Jul 2018
Posts: 635
Likes: 329
From: Missouri
Personally, I'd do lts and xpipe all stainless 3in out to tips off your liking and then just.decide on muffler choice. A really good sounding muffler that never gets mentioned... Gibson mwa 3in/out center in/out. Straight through chamber muffler. Stainless and great sounding. You tube Gibson mwa . Just my .02 cents......
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TECH Enthusiast
Joined: Jul 2018
Posts: 635
Likes: 329
From: Missouri
you gotta now when to hold em, and know when to fold em. I've seen loud slow cars. And quiet fast cars.......... All in the eye ove the beholder!!]
Last edited by Kjduvall; Jun 25, 2019 at 05:52 PM. Reason: misuse of words
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Verdad Gallardo Thanks everyone for the ideas. About 15 years ago I had kooks LTs and TSP true duals on my stock 99 Camaro SS and that was a good setup with a great sound. I have heard over the years that TSPs bullets were either Dynomax bullets, Sweet Thunders or Moroso Spiral Flows. Can anyone confirm.
KJ I will do a search on those Gibson MWA you recommended.
KJ I will do a search on those Gibson MWA you recommended.