Thinking of ditching true dual exhaust
Thinking of ditching true dual exhaust I'm thinking of ditching SE duals to go back to a y pipe setup and a single exhaust. Like the mufflex single 4" or a 3.5". I don't like the sound of dual exit exhausts on ls1s apparently, well, at least the ones I've tried. With stock manifolds and cats the slp lm2 was ok, then the long tubes and ORY came and the lm2 got a flopro or proflo twister. Still hated it. The duals sound better in videos then in person to me. I'm not a huge fan of it's sound. I've been searching for videos and I like the more refined sound of the single exhaust when accelerating. But I liked the sound of true duals in videos too.
anyone go to a single exit exhaust lately? Any impressions you can give me?
anyone go to a single exit exhaust lately? Any impressions you can give me?
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
I'm thinking of ditching SE duals to go back to a y pipe setup and a single exhaust. Like the mufflex single 4" or a 3.5". I don't like the sound of dual exit exhausts on ls1s apparently, well, at least the ones I've tried. With stock manifolds and cats the slp lm2 was ok, then the long tubes and ORY came and the lm2 got a flopro or proflo twister. Still hated it. The duals sound better in videos then in person to me. I'm not a huge fan of it's sound. I've been searching for videos and I like the more refined sound of the single exhaust when accelerating. But I liked the sound of true duals in videos too.
anyone go to a single exit exhaust lately? Any impressions you can give me?
anyone go to a single exit exhaust lately? Any impressions you can give me?
Be warned. These catbacks are usually designed for unmodified vehicles. You try to pair most of them up with an ORY it may not fit right and will require some modification to fit.
I had to cut the hooker pipe to fit over the Y pipe. The hooker and tsp were both 2.75. Still doesn't fit too well but I will get a muffler shop to get it situated eventually.
I'm going with Speed Engineering's Y pipe, cut open to 3.5'' with a small 3.5'' dynomax race bullet and a turn down. Should be quieter than true duals by a tad, but still maintain flow/power and drop a little weight.
The more I look the more I’m leaning towards the 3.5” Mufflex/Magnaflow setup. The few videos I’ve watched it just sounds smooth with great tone. I just wish it was stainless!!!!
Trending Topics
My current set up is pacesetter lt's, speed engineering duals, 3.73s, ws6 store hotcam. The fact it's an auto may be why I dislike the sound too. But think I honestly just don't like the sound of a ls1 lol. I loved my lt1s.
Duals have benefits though that I don't know if I want to lose. Plus trans am without exhaust tips, or a single exhaust tip...i don't know.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo When daily driving it's just loud when it shouldn't be if that makes sense. It's 80s truck style in that it makes more noise than is relevant to acceleration and the tone to me is just noise. You can't hear quite every cylinder firing, but it's close. The only thing I can say is that wot sounds good. Inside the car I don't think it sounds good either. This is all personal preference
My current set up is pacesetter lt's, speed engineering duals, 3.73s, ws6 store hotcam. The fact it's an auto may be why I dislike the sound too. But think I honestly just don't like the sound of a ls1 lol. I loved my lt1s.
Duals have benefits though that I don't know if I want to lose. Plus trans am without exhaust tips, or a single exhaust tip...i don't know.
My current set up is pacesetter lt's, speed engineering duals, 3.73s, ws6 store hotcam. The fact it's an auto may be why I dislike the sound too. But think I honestly just don't like the sound of a ls1 lol. I loved my lt1s.
Duals have benefits though that I don't know if I want to lose. Plus trans am without exhaust tips, or a single exhaust tip...i don't know.
I have Stainless Works 3.5" over the axle with a straight through muffler. It sounds AWESOME, but it is loud. Just a little less loud than my friend with the same mufflers on a dual 3" system. And I do mean just a little.
Basically it's too loud for a pleasant drive, and freakin' awesome for a rowdy drive. The two don't live together in the same space.
Basically it's too loud for a pleasant drive, and freakin' awesome for a rowdy drive. The two don't live together in the same space.
Going with a single 3.5" setup fits pretty well and using a Borla XR1 5x8 or Magnaflow 5x8 muffler and would be quiet enough under normal driving conditions and great at WOT or idle because they are straight-through mufflers. And it would still flow fine.
But if you have the panhard relocation, you can run a single 4" setup and it has more space than dual 3" by a good bit.
What you could do is grab the Hawks Sinister 4" exhaust and then install a 4" muffler, and it would provide a single pipe exhaust and flow very well.
But if you have the panhard relocation, you can run a single 4" setup and it has more space than dual 3" by a good bit.
What you could do is grab the Hawks Sinister 4" exhaust and then install a 4" muffler, and it would provide a single pipe exhaust and flow very well.
I'd listen to Jake up there. I have a dumped XR1 3" on an ORY setup and there is no rasp. The tone of it is extremely deep for a stock internal car. There is drone due to my exit location. I knew that going in. Will be revising it to having it cut back to 3.5" at the merge and redone in 3.5" turned all the way down instead of out.
I went and looked up the XR-1 product codes for the 4" inlet mufflers. And they are not a 5x8 but a 4.25x7.88"... and they have a 12" or 16" long one.
The 12" will be louder, but the 16" would fit and do fine (though I think the section Hawks provides is 12" but either could be made to work). The PN for the 16" is 40948 and the 12" is 40947.
The 12" will be louder, but the 16" would fit and do fine (though I think the section Hawks provides is 12" but either could be made to work). The PN for the 16" is 40948 and the 12" is 40947.
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Before trashing your duals, you might try replacing the mufflers with Hooker Maxflows. They are amazingly civilized in normal driving but are awesome at heavier throttle. The best of both worlds.
After going to LT's, I went through a ridiculous number of combinations before settling on a Hooker Maxflow single exit setup. I've been happy ever since.
After going to LT's, I went through a ridiculous number of combinations before settling on a Hooker Maxflow single exit setup. I've been happy ever since.
They have a Hooker Maxflow for the 4" setup too. 21609HKR
I might give that a try since it would be cheap to do a single 4" hidden tailpipe setup. Though I really need my tips on the TA. Hmm.
I might give that a try since it would be cheap to do a single 4" hidden tailpipe setup. Though I really need my tips on the TA. Hmm.
When daily driving it's just loud when it shouldn't be if that makes sense. It's 80s truck style in that it makes more noise than is relevant to acceleration and the tone to me is just noise. You can't hear quite every cylinder firing, but it's close. The only thing I can say is that wot sounds good. Inside the car I don't think it sounds good either. This is all personal preference
My current set up is pacesetter lt's, speed engineering duals, 3.73s, ws6 store hotcam. The fact it's an auto may be why I dislike the sound too. But think I honestly just don't like the sound of a ls1 lol. I loved my lt1s.
Duals have benefits though that I don't know if I want to lose. Plus trans am without exhaust tips, or a single exhaust tip...i don't know.
My current set up is pacesetter lt's, speed engineering duals, 3.73s, ws6 store hotcam. The fact it's an auto may be why I dislike the sound too. But think I honestly just don't like the sound of a ls1 lol. I loved my lt1s.
Duals have benefits though that I don't know if I want to lose. Plus trans am without exhaust tips, or a single exhaust tip...i don't know.
If it's the exhaust note you don't like, I totally get it, but if it's how the car sounds from the drivers seat, that can change
Going with a single 3.5" setup fits pretty well and using a Borla XR1 5x8 or Magnaflow 5x8 muffler and would be quiet enough under normal driving conditions and great at WOT or idle because they are straight-through mufflers. And it would still flow fine.
But if you have the panhard relocation, you can run a single 4" setup and it has more space than dual 3" by a good bit.
What you could do is grab the Hawks Sinister 4" exhaust and then install a 4" muffler, and it would provide a single pipe exhaust and flow very well.
But if you have the panhard relocation, you can run a single 4" setup and it has more space than dual 3" by a good bit.
What you could do is grab the Hawks Sinister 4" exhaust and then install a 4" muffler, and it would provide a single pipe exhaust and flow very well.
The only problem with your plan is I hate Hawks with everything in me. I will until the day I die. So they will never get my money. The more I listen to some 3.5 mufflex setups the more I like them.
With this https://www.summitracing.com/parts/aph-x5500 , and a hooker maxflow I may end up where I want. I drove my car about 3 hours the other day with the duals and it just really kind of sucked. All highway. Maybe Ill atleast go to the track with them before pulling them off. I have a tsp y pipe still sitting around, but I dont want to put much money into a new setup.
@RevGTO Im not sure they would fit, its pretty amazing they got 2 "mufflers" in the back in the first place lol.
Last edited by trilkb; Apr 6, 2020 at 12:00 PM.