09-03-2020, 01:25 PM | #1 |
Drives: 2017 ZL1 Join Date: Aug 2020
Location: Lakeside, Az
Posts: 489
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Headers & hi flow cats into stock exhaust or straight pipes?
This is for a buddy it's a 5th gen 6.2 SS 1LE but I'm thinking folks here could give some input as well.
He's got some kooks 1 7/8 with hi-flow cats and he bought a 3" straight through setup with an x pipe as well. I'm guessing it's gonna be way louder then he wants so the question, tie it into stock exhaust or use the straight setup and possibly put some vibrant resonators on it, and what would he be giving up in hp to just use the stock exhaust after headers? |
09-04-2020, 12:47 PM | #2 |
Drives: '16 Garnet Red 1SS Join Date: Mar 2014
Location: College Station, TX
Posts: 3,450
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Try stock first. Then go from there.
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'16 Camaro 1SS
'18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata |
09-06-2020, 10:34 AM | #3 |
Drives: 2018 camaro 2ss Join Date: Nov 2018
Location: Riverside CA
Posts: 93
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I went from muffler delete to ARH 2 inch long tube catless headers with the stock exhaust back on it. Not sure how much HP it would have been without the muffler but I gained about 25 WHP before and after.
Noise level came out perfect in my opinion. A little louder than stock with anything under 2.5k RPM but gets loud af when you go WOT |
09-06-2020, 02:30 PM | #4 |
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
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You don't want straight pipes....not with headers...
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2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD |
09-09-2020, 06:41 PM | #5 |
Drives: 2017 SS 1LE Join Date: May 2018
Location: Tracy CA
Posts: 32
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Like redline said,
I used American Racing Headers, no cats, xpipe back to original muffler. Engine can finally breathe. Sounds great & yes full throttle is loud AF. Your neighbors will love it. |
09-15-2020, 11:46 AM | #6 |
Drives: HB 2SS Join Date: Apr 2017
Location: Vancouver, BC
Posts: 518
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Not sure if the 5th gen is any difference but headers to straight pipe sounds like ass. To the stock exhaust it's a lot better but sometimes have a tin can sound. Granted this is moreso for the 6th gen.
I'd suggest what Enzia said and start with the stock muffler before chopping anything off. |
09-30-2020, 07:20 AM | #7 |
Drives: 2021 camaro 2LT Join Date: Aug 2020
Location: Suffolk county, NY
Posts: 10
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I have a 2021 2.0 coming in and I can’t find straight pipes for them or axel back I guess is the same thing. But any help or link would be great every site doesn’t seem to fit my new camaro
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09-30-2020, 01:11 PM | #8 |
BLUPRINT_1LE
Drives: 2022 Rapid Blue SS 1LE Join Date: May 2017
Location: Motor City -> AZ
Posts: 724
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I believe I have made a bad decision..I bought Kooks catless headers which will hook up to my secondary cat deleted H pipe system with no mufflers.I never had a system like this before. I believe the only option I have left is I keep my stock suitcase muffler or buy AWE conversion kit or buy catted connections. Not sure if any of those will make a difference.
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2022 Camaro SS 1LE | PDR | Rapid Blue | Manual | Katech Built SS 1LE | Katech Build Sheet
IG: BLUPRINT_1LE YT: BLUPRINT_1LE ---------------------------------------------------------------- Last edited by Blackmonba6Gen; 09-30-2020 at 01:31 PM. |
10-03-2020, 08:34 PM | #9 |
Drives: 17 Camaro SS Join Date: Nov 2019
Location: Central VA
Posts: 117
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Headers make it louder. I installed the Flow Tech glass pack mufflers first and it sounded great but the headers made it louder but more torque. I like it as it is. The stock muffler sounds way to tinny.
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Flow Tech axle back, Roto-Fab, Nick Williams 103, AEM Wide Band, Defrost vent pod, billet catch can, BBK long tube headers and NGK LTR6GP, #90198, one step colder, Magnuson 2650, Snow Performance water/methanol injection. (Also tune myself w/HPTuners)
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