02 Z06 H-pipe????
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
If you are going through the trouble of taking it out you may as well get an after market X pipe.The factory H pipes are a waste!! For all practical purposes there is no balance effect( the actual purpose of an H or X) The main pipes have only a dime sized hole opening into the big 2 1/2" cross pipe. The after market x has a much more effective balance effect. There will still be only a minor affect on power and torque,,but it will smooth out the exhaust sound. As stated all H pipes are basically the same!!
Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
The Z06 H-pipe / cats are different; the cats are responsible for about 5HP of the 405HP in the 02+ Z06 (Source - GM lead engine designer).
The problem for you is the angles on the stock 99 headers do not line up with the 02 angles.
The problem for you is the angles on the stock 99 headers do not line up with the 02 angles.
Last edited by Dan_the_C5_Man; Feb 2, 2009 at 01:30 AM.
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
So no fit and no gain, IMHO.
