Installed Kooks Stepped Headers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SSmokey · 07-31-2013, 01:32 PM

Installed Kooks 1 3/4 stopped to 1 7/8 headers with high flow cats last night that I got from Marylandspeed and Holy S%^* they really woke the car up. I started it up and the sound was amazing. Great quality in the welds and Zero fitment issues. I did them myself and took just about 3 hours total to do.
If these are in your budget they really change the whole sound of the car!!!

All.Black.Everything · 07-31-2013, 01:52 PM

I have really considering getting some of those, could you feel those extra horses pretty well?

SSmokey · 07-31-2013, 02:28 PM

It's one of those things the car became so much louder it feels faster but im sure I only picked up about 30hp or so with them until i get the tune. I also have a CAI and lower Pulley.

MarylandSpeed · 07-31-2013, 09:45 PM

Thanks for the order. We are hoping to put a set on our ZL1 and dyno soon!

SS2-1LE · 07-31-2013, 09:49 PM

What are the benfits of stepped headers noot sure which way to take? You have any vids?

joes407 · 08-01-2013, 11:25 AM

Quote:

Originally Posted by SSmokey

It's one of those things the car became so much louder it feels faster but im sure I only picked up about 30hp or so with them until i get the tune. I also have a CAI and lower Pulley.

how much boost did you lose?

SSmokey · 08-01-2013, 03:44 PM

Quote:

Originally Posted by joes407

how much boost did you lose?

Not sure I will re dyno the car Saturday to see how much HP I gained. The car feels quicker but i don't notice the S/C whine anymore.

Jayrcr3 · 08-01-2013, 03:51 PM

Be careful. If you went from factory manifolds to headers, it may have leaned it out quite a bit with the blower.

Sent from my HTC One X using Tapatalk 4 Beta

ZO6 Bryan · 08-03-2013, 08:12 AM

I installed the stepped headers also several months ago. Very easy install. Only glitch was the header touching the steering shaft boot. So I cut that off. No loss of boost and fuel trims did not change significantly. They will set a couple codes after a few days driving that is an easy fix in the tune.

SSmokey · 08-05-2013, 10:29 AM

Thanks for the info^

Nemisis · 08-12-2013, 07:59 PM

Any updates? You still running stock injectors with the lower pulley and cai?

ZO6 Bryan · 08-13-2013, 07:44 AM

Quote:

Originally Posted by Nemisis

Any updates? You still running stock injectors with the lower pulley and cai?

I'm running the ID850 injectors on my car. Not because of the headers, but because of the 9.55 lower pulley. The stock injectors were hitting 125-130% duty cycle. Also added a Kenne Bell Boost-a-Pump because fuel pressure was really falling off fast on top end. The Boost-a-Pump works great and holds 65 psi fuel pressure all the way to redline.

SSmokey · 08-16-2013, 08:59 AM

Got a base tune and redyno yesterday the car made 571hp 544lb tq pretty happy with those numbers.

evilsrt8 · 08-16-2013, 04:24 PM

You picked up around 70 RWHP with just headers?? What? I'm confused...

07-31-2013, 01:32 PM	#1
SSmokey Drives: 2012 Black ZL1 Camaro Join Date: Jan 2010 Location: Florida Posts: 86	Installed Kooks Stepped Headers Installed Kooks 1 3/4 stopped to 1 7/8 headers with high flow cats last night that I got from Marylandspeed and Holy S%^* they really woke the car up. I started it up and the sound was amazing. Great quality in the welds and Zero fitment issues. I did them myself and took just about 3 hours total to do. If these are in your budget they really change the whole sound of the car!!! __________________

07-31-2013, 02:28 PM	#3
SSmokey Drives: 2012 Black ZL1 Camaro Join Date: Jan 2010 Location: Florida Posts: 86	It's one of those things the car became so much louder it feels faster but im sure I only picked up about 30hp or so with them until i get the tune. I also have a CAI and lower Pulley. __________________

08-01-2013, 03:51 PM	#8
Jayrcr3 Drives: 2011 IOM 2SS/RS Join Date: Dec 2010 Location: Chatham, Illinois Posts: 756	Be careful. If you went from factory manifolds to headers, it may have leaned it out quite a bit with the blower. Sent from my HTC One X using Tapatalk 4 Beta __________________ American Racing 1 7/8" Headers and Hi-Flow Cats, CAI cold air intake, Flowmaster AT exhaust, Vengeance Racing Stage 2 cam, VMax ported throttle body, TEA valve springs and titanium retainers, Trick Flow hardened pushrods, 180* T-stat, Comp Trunion kit, ZL1 Fuel Pump, ADM Fuel Pump Control Module, 20% window tint, Whipple Supercharger. Tuned by Mike Norris Motorsports. 656rwhp/584rwtq @10 PSI.

08-03-2013, 08:12 AM	#9
ZO6 Bryan Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012 Location: Southeast Posts: 1,838 View My Garage	I installed the stepped headers also several months ago. Very easy install. Only glitch was the header touching the steering shaft boot. So I cut that off. No loss of boost and fuel trims did not change significantly. They will set a couple codes after a few days driving that is an easy fix in the tune. __________________ Bryan 2018 ZL1 M6

08-05-2013, 10:29 AM	#10
SSmokey Drives: 2012 Black ZL1 Camaro Join Date: Jan 2010 Location: Florida Posts: 86	Thanks for the info^ __________________

07-31-2013, 01:52 PM	#2
All.Black.Everything Drives: 2012 Black 2SS/RS Camaro Join Date: May 2013 Location: Panama City, Florida Posts: 62 View My Garage	I have really considering getting some of those, could you feel those extra horses pretty well?

07-31-2013, 09:45 PM	#4
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	Thanks for the order. We are hoping to put a set on our ZL1 and dyno soon!

07-31-2013, 09:49 PM	#5
SS2-1LE Drives: 08 G6 GXP Join Date: Jul 2012 Location: Windsor, Ontario Posts: 50	What are the benfits of stepped headers noot sure which way to take? You have any vids?

08-12-2013, 07:59 PM	#11
Nemisis Drives: 2013 Ashen Gray Metallic-M6 Join Date: Aug 2012 Location: Artesia, NM Posts: 171	Any updates? You still running stock injectors with the lower pulley and cai? __________________ 2013 AGM m6 zl1-airaid cai, 9.55" crank pulley and jre tuning, 2" tsp longtubes, FAST 85lb injectors...630/627

08-16-2013, 08:59 AM	#13
SSmokey Drives: 2012 Black ZL1 Camaro Join Date: Jan 2010 Location: Florida Posts: 86	Got a base tune and redyno yesterday the car made 571hp 544lb tq pretty happy with those numbers. __________________

08-16-2013, 04:24 PM	#14
evilsrt8 Drives: 2013 victory red ZL1. 2011 CTS-V Join Date: May 2011 Location: Streets of Dubai Posts: 46	You picked up around 70 RWHP with just headers?? What? I'm confused...