08-20-2013, 03:13 PM | #15 |
Drives: 79 transam with 582cid dart motor Join Date: Jun 2010
Location: missouri
Posts: 529
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I have 1 7/8 kooks, 3×3 cats. Cut off the 2.5 " end of flowmaster AT welded on 3 inch end. 3 inches all the way back. Love it.
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2010 Camaro (inferno orange, 2SS, RS and such) cat backs, catch can, CAI on the way 79 Transam, 582 cid dart motor 779hp 315's out back 40spline gdaxles tko tranny |
08-20-2013, 06:58 PM | #16 |
Geek
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That's what I'm gonna do one of these days. I bought the neck-down version of the JBA 3" long before I got the headers. Simple problem with a simple remedy!
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08-20-2013, 08:04 PM | #17 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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I slapped a Flowmaster 3" catback and center mount exhaust with the kooks and I live it!
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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10-29-2013, 08:47 PM | #18 |
Drives: 2013 1LE Join Date: May 2013
Location: NJ
Posts: 685
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Needed to update this. Now making 741 RWHP and still using 1-7/8 kooks headers, kooks off road pipes and stock 2.5 pipes. Thinking it would help some to move to a full 3 inch exhaust?
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10-29-2013, 08:55 PM | #19 |
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10-30-2013, 01:23 AM | #20 |
Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,071
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ARH makes a full 3" kit
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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10-30-2013, 02:05 AM | #21 |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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At 700+whp, a full 3in exhaust would have already been on my car.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
10-30-2013, 07:17 AM | #22 |
10-bolt Destroyer
Drives: 2012 Camaro 2SS/RS - AGM, LS3/6M Join Date: Jun 2012
Location: Canukistan
Posts: 860
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Waste of money for true dual 3" on these cars.
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2012 Camaro 2SS/RS - LS3/TR6060: Cam, Headers, Exhaust, Intake, Gears, Twin Disk, Suspension, Tuned - 475rwhp, 443rwtq |
10-30-2013, 08:52 AM | #23 |
Geek
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Says the guy without a 3" exhaust.
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x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x |
10-30-2013, 03:09 PM | #24 |
Drives: 2013 1LE Join Date: May 2013
Location: NJ
Posts: 685
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Funny u say that because a guy that dyno's 100's of Camaro's told me he never sees any gains from cars that switched to 3inch exhaust. He has told me when your over 800 +rwhp then it's worth it. Has anyone done any back to back testing switching the 2.5 to 3 on the dyno??
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10-30-2013, 03:36 PM | #25 | |
Geek
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Quote:
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01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001
x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x |
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10-30-2013, 08:12 PM | #26 | |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Quote:
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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10-30-2013, 08:23 PM | #27 |
Drives: 2013 1LE Join Date: May 2013
Location: NJ
Posts: 685
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I would agree, hell back in the day a SBC with anything over 500 hp always got 3 inch pipe on it.
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10-30-2013, 08:31 PM | #28 |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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I agree but I wouldn't hesitate to leave the stock 2.5in piping on a 500+whp car. Once you're boosted and pushing well over 600whp, you NEED a bigger exhaust.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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