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12-17-2018, 10:14 AM
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#15 |
 Drives: Gone: 2017 Camaro SS Join Date: Dec 2016
Location: London Ontario Canada
Posts: 111
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Modern factory cats cause very little reduction in hp. Why get rid of them to gain an amount of power you cannot even perceive?
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12-17-2018, 10:24 AM
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#16 |
 
Drives: 2017 Camaro 1SS M6 (SOLD) Join Date: Oct 2016
Location: 19518
Posts: 402
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OP is going with a Whipple, and the cats can cause a problem in FI applications. Removing my cats in a whipple application yielded 23rwhp, after re-tuning for the cat delete.
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2017 1SS M6 Hyper Blue Metallic NPP, MMR 228 Z/28 replica wheels, Front: 20 x 9, Rear 20 x 11
Stock: 416hp/427tq, 12.21 @ 116.80 Modified 02/2019: Whipple SC w/ 3.500 pulley, LT4 fueling, NW 103 TB, Roto-Fab Big Gulp, Kooks 2" jet coated, full Borla ATAK exhaust, DSS axles, Gforce driveshaft. Tuned by EFX Tuning 688hp/632tq Best 1/4 to date: 10.705 @ 131.92 |
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12-17-2018, 02:54 PM
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#17 | |
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Drives: 18 2SS 1LE Join Date: Jul 2018
Location: OK
Posts: 112
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12-17-2018, 03:15 PM
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#18 | |
 Drives: Camaro Join Date: Sep 2018
Location: USA
Posts: 520
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12-17-2018, 03:18 PM
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#19 | |
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Drives: Camaro Join Date: Sep 2018
Location: USA
Posts: 520
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Quote:
I plan on drag racing this car about 10 times per year. |
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12-17-2018, 03:21 PM
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#20 | |
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Drives: 18 2SS 1LE Join Date: Jul 2018
Location: OK
Posts: 112
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12-17-2018, 03:27 PM
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#21 | |
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Drives: Camaro Join Date: Sep 2018
Location: USA
Posts: 520
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12-17-2018, 03:39 PM
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#22 | |
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Drives: 18 2SS 1LE Join Date: Jul 2018
Location: OK
Posts: 112
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12-19-2018, 08:39 PM
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#23 | |
Drives: 2017 50th Anniversary Camaro SS Join Date: Jun 2017
Location: Milwaukee
Posts: 124
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Quote:
I think they need to buy blinker fluid!! 
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2017 50th Anniversary Camaro 2SS
2016 Chevy Malibu LT (wife's car) 2004 Chevy Impala (winter car) 2001 Chevy Camaro SS (sold) 1969 Chevy Suburban (restoration project) |
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12-20-2018, 08:25 AM
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#24 |
         
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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The rear cats don't restrict much...The front cats are where the bottle neck is. Look how much smaller the diameter of the pipe is between the front cats and the factory header flange is. It necks down under 2". You gain about 10-12whp removing them on a NA car and I wouldn't be surprised if you see over 20whp on a low boost setup.
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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 |
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12-20-2018, 08:28 AM
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#25 |
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Drives: Camaro Join Date: Sep 2018
Location: USA
Posts: 520
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After the Whipple is dialed in then I'll install my Kooks LTH
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