05-29-2020, 05:43 PM | #15 |
Drives: 2019 2ss 1LE Join Date: Mar 2019
Location: Kennett square, PA
Posts: 307
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I hate the sound of headers with no cats on npp, but I have borla s type cat back now and I don't know how the catless would sound with them.
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06-01-2020, 08:25 PM | #16 |
Drives: 17 Camaro SS Join Date: Nov 2019
Location: Central VA
Posts: 117
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Do the long tube headers with high flow cats. I have Flow tech axle back glass packs. Sounds great and not tooo loud. LOL You will need to tune the car to turn off the down stream O2 sensors.
The increase in power is worth it.
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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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06-02-2020, 08:41 AM | #17 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
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My Kooks high flow cats are holding up great so far at around 750whp. They have around 10k miles including numerous track days. I dropped my exhaust last weekend when I installed the FE4 handling kit and ZLE cradle bushings and the cats still looked like new. Based on Greg and other's experiences, I must be right at the limit boost/hp wise.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
06-02-2020, 10:25 AM | #18 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,741
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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06-03-2020, 06:45 AM | #19 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
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Yeah, not sure what I'll do when/If they fail. I really like the way the car sounds with the headers and cats into the stock exhaust. I don't have to worry about emissions inspection in my county, so going catless wouldn't be a problem. I'm just not sure on the sound.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
06-04-2020, 04:46 AM | #20 |
Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
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ARH told me the hi flow is good to 800rwh. Over that they burn up. I am going arh headers and long system with cats into the suitcase.
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06-04-2020, 05:23 AM | #21 |
Shifts under load
Drives: 2020 Camaro 1SS 1LE rally green Join Date: Apr 2017
Location: Fuquay-Varina, NC
Posts: 1,295
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Oh, and don't forget smelling like raw fuel with no cats.
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24 Audi S3 prem plus, sport package
HPDE - southeast - JTI- solo, PCA- blue. 22 Suzuki GSX-S 1000GT blue |
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