I plan on going with the ECO supercharger from GM as soon as the damn thing comes out......But i have a few questions. I plan on running 11PSI wich will bring me up to about 250 horsepower. I have an auto matic. And have a full exhuast of 2.25 pipeing. With pacesetter header, high flow cat....ect ect. Engine mounts....Shift improver....

Will my exhuast be big enough?
How bad will it affect my transmission.
And do i need to upgrade the fuel pump?

you wont be at 250hp... maybe around 210-220hp, and there is a parts list already for the GM supercharger on the ECO.
your exhaust is fine... i have the GM kit on my 2.4L and i have a full 2.5" but 2.25" is just fine.
The transmission will be fine too
and i think if you want to run 11psi you will need to upgrade your fuel pump

your tranny will be a little stressed but ok

Your exhaust could be bigger but still is fine

You should upgrade the fuel pump



1989 Turbo Trans Am #82, 2007 Cobalt SS G85