1996pontiac
New member
How would i know if i have a m90 or anyother supercharger i have on my 99 gp gtp? Also could i swap out my series 2 for a series 3?
^Stolen from another current thread on the same headers... just addition stuff you need for them.Here is the procedure you'll be asking about next.
http://www.grandprixforums.net/how-install-headers-easy-method-44126.html
You want to go on Frozenboost.com and buy 2 2.25" and 2 3.00" exhaust band clamps. They are about 1" wide.
Gaskets..reuse your stock manifold to head gaskets. Use the one they gave you for the catback connection.