Cam this spring another 80 RWHP 
new headers
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
new headers
Got my American Racing headers installed by East Texas Muscle Cars Tuesday. Wow, what a difference they make. Stephen and Chris are super guys to work with. Car initially made 326 hp and ended up with 366 hp. Much better sound too with basically no drone.
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
it's to bad you did'nt have it tuned first, you probably would'nt have spent the$ on the headers, most of your Hp gain was the tune
Melting Slicks
Joined: Jun 2006
Posts: 2,690
Likes: 1
From: Northern Calif
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
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Melting Slicks
Joined: May 2004
Posts: 3,017
Likes: 2
To OP, nice gains on what appears to be a very stingy dyno. Enjoy your new found power..
Former Vendor
Joined: Oct 2007
Posts: 2,032
Likes: 6
From: longview tx
Most of my HP gain was from headers. My tuner ran the car for about 30 minutes to check for leaks, alignment, etc. The tune fattened the torque curve, and did raise the hp by 8 or 9. I saw this with another owner that did the self install and had to wait 2 weeks to get to the tuner. The majority of the gain was from the hardware if the car is allowed to do some self adjusting of AFR...
To OP, nice gains on what appears to be a very stingy dyno. Enjoy your new found power..
To OP, nice gains on what appears to be a very stingy dyno. Enjoy your new found power..
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
and the new sound from the exhaust is amazing. Everyone that hears it says it really sounds good, and virtually no drone. It now sounds like a real muscle car.
Again, thanks to Stephen and Chris.
Again, thanks to Stephen and Chris.
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
Thanks...yes to answer your question. Major difference in acceleration from before and after. Not sure the tune was right before the install or just what it was, but now it accelerates must better than before. A definite improvement.
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
Team Owner
Joined: Jan 2006
Posts: 29,085
Likes: 14
From: Cary IL and Parrish FL
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
When I had a base c6 the headers and tune made a HUGE difference. However, with the Z06 many say headers are not necessary. I wonder if that is true.