Kooks Lt Headers and "Green" High Flow Cats - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BiggFoot · 03-02-2013, 09:07 PM

Anyone running the full Kooks setup with LT headers and green cats? Kooks claims their setup will pass emissions testing and I was just curious if anyone can vouch for that.

Thanks!

BiggFooT

Pro Stock John · 03-02-2013, 09:35 PM

I'm running them but don't have to test emissions anytime soon.

SPCBA · 03-02-2013, 10:12 PM

http://www.camaro5.com/forums/showthread.php?t=274396

just be warned without tune you will run lean at wide open throttle.

BiggFoot · 03-05-2013, 03:59 PM

Quote:

Originally Posted by Pro Stock John

I'm running them but don't have to test emissions anytime soon.

Thanks for the reply John . . . How do you like the sound?

BiggFoot · 03-05-2013, 04:02 PM

Quote:

Originally Posted by SPCBA

http://www.camaro5.com/forums/showthread.php?t=274396

just be warned without tune you will run lean at wide open throttle.

I already have a tune with a Stainless Works setup (LT headers, cats, X-pipe, and mufflers) but I will talk to the G-Force guys to see if we need to take another look.

Thanks!

Pro Stock John · 03-05-2013, 06:06 PM

I like how mine sound but frankly you're way more modded, how does yours sound.

JDP Sales · 03-05-2013, 06:19 PM

If you already have headers and HFC's why do you want to change them?

Best regards,

Tyler
888-308-6007

litle88 · 03-05-2013, 06:26 PM

Quote:

Originally Posted by BiggFoot

I already have a tune with a Stainless Works setup (LT headers, cats, X-pipe, and mufflers) but I will talk to the G-Force guys to see if we need to take another look.

Thanks!

Green cats with a TVS blower and cam?
Good luck with that!

No bueno!

Mchlgrrsn · 03-05-2013, 06:34 PM

[QUOTE=litle88;6249559]Green cats with a TVS blower and cam?
Good luck with that!

No bueno![/QUOTE

Cats don't like boost ... No matter which ones you get. They will come apart. Cat delete is the way to go

67motorcat · 03-05-2013, 06:49 PM

Quote:

Originally Posted by BiggFoot

Anyone running the full Kooks setup with LT headers and green cats? Kooks claims their setup will pass emissions testing and I was just curious if anyone can vouch for that.

Thanks!

BiggFooT

I can't believe Kooks would say they would pass emissions testing....

It depends totally on each States rules and Technically the Feds forbid any emission control tampering at all.

For instance,It would never pass the Visual test in several states because the Cats are moved from their original location regardless if they sniff clean or not.

Other states forbid modifying or moving perfectly working Cats.

Just make sure it works where you live and your good.
I know it sounds crazy but that's how it's always been.

MarylandSpeed · 03-05-2013, 08:24 PM

No LT headers are emissions legal because they remove or replace the factory cats. That is why they are all sold for off road use. The big thing about green cats is they are much cleaner than normal high flows, and because they do not throw check engine lights, they do not require a tune.

BiggFoot · 03-05-2013, 09:02 PM

[QUOTE=Mchlgrrsn;6249594]

Quote:

Originally Posted by litle88

Green cats with a TVS blower and cam?
Good luck with that!

No bueno![/QUOTE

Cats don't like boost ... No matter which ones you get. They will come apart. Cat delete is the way to go

Yeah I am currently running gutted cats because I blew out one and it lodged in the X-pipe. I was having the DSS drive shaft, axles, 9" conversion, and gears installed and one of the mechanics just happened to see the plugged X-pipe when they dropped the exhaust for better access during installation.

I am willing to change out the entire exhaust system if it will pass the Texas emissions test.

BiggFoot · 03-05-2013, 09:06 PM

Quote:

Originally Posted by Pro Stock John

I like how mine sound but frankly you're way more modded, how does yours sound.

Actally the Stainless Works system sounds awesome, however when I had the cats gutted I picked up an annoying backdraft (wughhhhh) sound when I shift gears at about 4000 rpm or so. If I hammer down on it and shift near redline it wont do that though.

BiggFoot · 03-05-2013, 09:09 PM

Quote:

Originally Posted by 67motorcat

I can't believe Kooks would say they would pass emissions testing....

It depends totally on each States rules and Technically the Feds forbid any emission control tampering at all.

For instance,It would never pass the Visual test in several states because the Cats are moved from their original location regardless if they sniff clean or not.

Other states forbid modifying or moving perfectly working Cats.

Just make sure it works where you live and your good.
I know it sounds crazy but that's how it's always been.

Kooks supposedly teamed up with an emissions testing company to develop the "green" cats. I understand that others in my area have tried the green cats and passed the emissions testing.

03-02-2013, 09:07 PM	#1
BiggFoot Drives: 2010 Camaro (M6) 1000+ HP SBE Join Date: Jun 2011 Location: Houston Posts: 1,391	Kooks Lt Headers and "Green" High Flow Cats Anyone running the full Kooks setup with LT headers and green cats? Kooks claims their setup will pass emissions testing and I was just curious if anyone can vouch for that. Thanks! BiggFooT __________________ F-1X, Cog Drive, ATI Super Pulley/Sprag ~ 19 psi Blower Cam Brodix BP BR 3 Heads Kooks LT Headers and full 3" exhaust Fore Triple Pump Fuel System with ID 1700X Injectors - E85 conversion DSS 9” Conversion (1400 hp axles, driveshaft, pumpkin) & Strange 3.70 gears McLeod RXT Twin HD Clutch & Upgraded Slave RPM Level VII TR6060 BMR Drag Suspension Package w/Strange shocks Carlyle 15" and M/T ET Street R radials 10.1 @ 143 mph 1/4 mile

03-02-2013, 09:35 PM	#2
Pro Stock John Writer Drives: 2010 SS / 1967 Camaro Join Date: May 2009 Location: Chicago, IL Posts: 7,216	I'm running them but don't have to test emissions anytime soon. __________________ PROJECT HEAVY CHEVY Camaro Now: Mods for the Masses Part I \| Part II 13.15@106 1.95 \| 100% Stock 12.37@112 1.85 \| + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 \| + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 \| + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 \| + GPI VVT Cam + BW Ported Heads + CD 3800

03-02-2013, 10:12 PM	#3
SPCBA Drives: pleather and Chiclets Join Date: Mar 2012 Location: a line somwhere Posts: 4,206 View My Garage	http://www.camaro5.com/forums/showthread.php?t=274396 just be warned without tune you will run lean at wide open throttle. __________________ the power by www.cunningham-motorsports.com the brakes by www.RacingBrake.com

03-05-2013, 06:06 PM	#6
Pro Stock John Writer Drives: 2010 SS / 1967 Camaro Join Date: May 2009 Location: Chicago, IL Posts: 7,216	I like how mine sound but frankly you're way more modded, how does yours sound. __________________ PROJECT HEAVY CHEVY Camaro Now: Mods for the Masses Part I \| Part II 13.15@106 1.95 \| 100% Stock 12.37@112 1.85 \| + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 \| + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 \| + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 \| + GPI VVT Cam + BW Ported Heads + CD 3800

03-05-2013, 06:34 PM	#9
Mchlgrrsn Stroked and blown Drives: 2010 LS3 2SS Join Date: Dec 2012 Location: Bridgewater, NJ Posts: 1,458 View My Garage	[QUOTE=litle88;6249559]Green cats with a TVS blower and cam? Good luck with that! No bueno![/QUOTE Cats don't like boost ... No matter which ones you get. They will come apart. Cat delete is the way to go __________________ LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC

03-05-2013, 06:19 PM	#7
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	If you already have headers and HFC's why do you want to change them? Best regards, Tyler 888-308-6007

03-05-2013, 08:24 PM	#11
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	No LT headers are emissions legal because they remove or replace the factory cats. That is why they are all sold for off road use. The big thing about green cats is they are much cleaner than normal high flows, and because they do not throw check engine lights, they do not require a tune.