I see no one ever replied to your post (when I was searching for something...), and that maybe thats why you never wrote any more?
My answer is doing the exhaust alone can only get you in the range of 5hp so on a 4AGZE (number guestimated). Its a LOT more worthwhile whacking on a bigger crank pulley say 164mm (dont bother with a 175mm pulley unless you're going to add mist injection or a better intercooler), better intake (pod filter) and rip out all the black pastic intake tubing from the side vent to the old air filter in the boot, THEN do the exhaust and reap a total gain of 35hp (number guestimated again) or so all up.....
Tue, 20 September 2005 04:00
