09-26-2023, 03:36 PM | #15 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,106
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It's going to big significantly louder if you install headers, possibly too loud for your tastes. If you're worried about being too loud, I would avoid headers on these cars.
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09-26-2023, 04:32 PM | #16 |
09-26-2023, 05:27 PM | #17 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,806
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Catless LT's -> resonated x pipe -> Stock NPP
VS Stock headers -> Cat delete pipes -> resonated X -> Corsa NPP. LT Headers setup is a little louder with valves closed. Stock headers setup is louder with valves open @ WOT. Honestly the LTH, Res X, Stock NPP setup is pretty tame and sounds good. I wouldn't waste money on aftermarket axel back for what they cost now.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
09-28-2023, 08:17 AM | #18 | |
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09-28-2023, 12:09 PM | #19 |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
Posts: 1,153
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Dumb question probably but do long tubes require a tune?
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
09-28-2023, 12:52 PM | #20 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,106
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09-28-2023, 05:18 PM | #21 |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 734
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I have kooks, no cats and borla s type.
Install was easy. Imo TO easy. I thought I missed something because it went so smoothly. **minus the dip stick tube. That ****ing thing took me an hour to get back in. As far as sound, on cold start it's loud. But in 10 secs it barely louder than when it was just the axle back. Just driving, it acts just like the axle back only. But when you get on it, it's pretty loud. |
09-28-2023, 07:50 PM | #22 | |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,106
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09-28-2023, 10:27 PM | #23 | |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 734
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It's pretty much a track only car so I'm use to the loud when it comes to that. Otherwise if I take it out to a car show or on a road trip, I'm not trying to set any land speed records or race people with 500 credit scores, so I just cruise. I know what the car is capable of so no reason to drive like an idiot. That also being said, the AWE is alot louder than a borla s-type. I would not want that loud of an exhaust. Last edited by AZIROC; 09-28-2023 at 10:40 PM. |
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09-29-2023, 03:24 AM | #24 | |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,106
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09-29-2023, 05:54 AM | #25 | |
CamaroFans.com
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I was pretty sure AWE would drone after header install so I stayed away until I see this. Thanks for the post and one of the BEST build videos I've ever seen. |
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09-29-2023, 10:02 AM | #26 |
Drives: 2020 Camaro ZL1 Join Date: Oct 2020
Location: Fort Worth, Texas
Posts: 1,153
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I come from the ls1 days in my older trans am to the lt4 gen 6 platform. And the ls1 back in the day benefited incredibly by going to long tube headers, is it the same benefit in the lt4 horsepower wise?
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2020 ZL1 A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| AWE Touring Catback Exhaust| TCM Tune| Tune| Eibach Pro| BMR Rear Cradle Lockout| PPF| Ceramic| BCForged HCS21 |
09-29-2023, 03:32 PM | #27 | |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 734
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Ur right. I was thinking the track version. That 1 is just disgustingly loud. And I've been told cats will help quiet the car down. |
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09-29-2023, 03:38 PM | #28 | |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 734
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Imo, no. I'm use to 4th geb stuff as well and agree, a full exhaust on a ls1 4th gen really woke up the engine. On an lt4...ehh. not so much. But imo, it's more of a needed "supporting" mod. want to do a pulley and/or port the blower, you better have headers. As far as how much power does a full exhaust add.... somewhere in the 15-20rwhp. |
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Tags |
6th gen, headers, zl1, zl1 1le |
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