04-22-2020, 12:50 AM | #15 |
Drives: 2018 Camaro SS/1LE Join Date: Jan 2018
Location: Bay area
Posts: 148
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If u live in ca and want the secondaries removed, just pull the exhaust off and gut them out..
Cheaper then cutting them out and still looks stock |
04-22-2020, 04:01 PM | #16 |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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the widening and the narrowing of the hollow housing probably will create more turbulence than a large straight thru cat brick....
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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04-22-2020, 05:14 PM | #17 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,885
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Agreed. Gutting cats usually results in a power loss vs a piece of straight pipe (unless the cat was clogged).
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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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04-23-2020, 01:12 AM | #18 |
Drives: 2017 2SS Join Date: Jun 2019
Location: Las Vegas
Posts: 102
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I’ve also had this done. Think it was $150. No codes, barely any louder with stock muffler. I went axel back after though and the combo is borderline too loud. Maybe you gain 2hp and drop 5lb. Nothing to write home about but at the price of a few welds, why not?
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04-23-2020, 03:51 AM | #19 | |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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Quote:
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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