The best modification/best return I found was to get air in and out of that 16 valve head...and the car wakes up like you wouldn't believe....start with headers...then finish with the right exhaust muffler ..the muffler alone will add 7 lbs of tourque ....I tested 5 mufflers on a dyno and found the right one....and it wasn't at all what I expected...side in - center out Flowmaster.
mark

[This message has been edited by wpspeedracer (edited February 27, 2005).]