Gen 2 Kooks Green Cats

L78toLT1 · 03-19-2022, 08:12 AM

I need to replace my Kooks catted connection pipes and seem to recall reading somewhere on the forums, i can't recall where, about gen 2 green cats from Kooks. I can't find anything on the Kooks website, or anywhere else on line regarding gen2 cats. Do you guys know if these things actually exist, and if so, where I can snag a pair?

JSH · 03-19-2022, 08:34 AM

You don't show us your car's power level, but Kooks green cats, which I have, should work for you, by looking at your mods.

On a separate topic, and looking at your chassis mods, do you have any suggestions on basic chassis mods that would help to get my car down the strip a bit quicker?

L78toLT1 · 03-19-2022, 08:58 AM

Quote:

Originally Posted by JSH

You don't show us your car's power level, but Kooks green cats, which I have, should work for you, by looking at your mods.

On a separate topic, and looking at your chassis mods, do you have any suggestions on basic chassis mods that would help to get my car down the strip a bit quicker?

I have not dynoed my car, but based on several identical builds by Ted Jannetty, I should be around 730whp on e60. I'm certain that standard green cats would last forever on the street, but they're not good for road course sessions on high speed tracks. If no cats are available that will hold up to track use, I will just run catless on the track, and swap on catted connection pipes for street duty. It would be nice not to have to deal with swapping back and forth, but there may be no other option.

I haven't done a lot of drag racing, but I would recommend the ZLE rear cradle bushings regardless of how the car is used. The rear end just seems much more planted. Your ZL1 already has equivalent springs and swaybars to what I have.

L78toLT1 · 03-19-2022, 09:06 AM

Quote:

Originally Posted by L78toLT1

I have not dynoed my car, but based on several identical builds by Ted Jannetty, I should be around 730whp on e60. I'm certain that standard green cats would last forever on the street, but they're not good for road course sessions on high speed tracks. If no cats are available that will hold up to track use, I will just run catless on the track, and swap on catted connection pipes for street duty. It would be nice not to have to deal with swapping back and forth, but there may be no other option.

I haven't done a lot of drag racing, but I would recommend the ZLE rear cradle bushings regardless of how the car is used. The rear end just seems much more planted. Your ZL1 already has equivalent springs and swaybars to what I have.

Just noticed you're a ZLE guy. Disregard what I said about the cradle bushings, you've already got 'em!

arpad_m · 03-19-2022, 09:16 AM

Ping Camaro1973, he has those gen 2 green cats installed by CSP.

KingLT1 · 03-19-2022, 04:51 PM

GESI Gen 2 are what you want.

L78toLT1 · 03-19-2022, 07:04 PM

Quote:

Originally Posted by KingLT1

GESI Gen 2 are what you want.

Thanks, King. Do you happen to have a source for these?

KingLT1 · 03-19-2022, 07:35 PM

CSP racing sells them.

SSUNDVL · 03-21-2022, 07:41 PM

Quote:

Originally Posted by KingLT1

GESI Gen 2 are what you want.

GESI for sure, some big hp coyote cars run them and dyno numbers are usually very close to catless.

L78toLT1 · 03-21-2022, 08:19 PM

Quote:

Originally Posted by SSUNDVL

GESI for sure, some big hp coyote cars run them and dyno numbers are usually very close to catless.

Sounds like GESI is the way to go. I'll just have to spend a few bucks at the muffler shop to tie the GESIs to my headers/mid pipes.

03-19-2022, 08:12 AM	#1
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,787	Gen 2 Kooks Green Cats I need to replace my Kooks catted connection pipes and seem to recall reading somewhere on the forums, i can't recall where, about gen 2 green cats from Kooks. I can't find anything on the Kooks website, or anywhere else on line regarding gen2 cats. Do you guys know if these things actually exist, and if so, where I can snag a pair? __________________ 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

03-19-2022, 08:34 AM	#2
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,564	You don't show us your car's power level, but Kooks green cats, which I have, should work for you, by looking at your mods. On a separate topic, and looking at your chassis mods, do you have any suggestions on basic chassis mods that would help to get my car down the strip a bit quicker? __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

03-19-2022, 09:16 AM	#5
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,625 View My Garage	Ping Camaro1973, he has those gen 2 green cats installed by CSP. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

03-19-2022, 04:51 PM	#6
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	GESI Gen 2 are what you want. __________________ 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

03-19-2022, 07:35 PM	#8
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	CSP racing sells them. __________________ 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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