damn i just got this thing in last night and it seems that i have tons of questions, here's another....

right now its just bolted up to my restrictive stock exhaust and i desperately need to get some custom piping done, however i wasn't sure how large of piping would be recommended. The engine is completely stock and i'm planning on keeping it that way for the most part, besides maybe i/h/e, oh and its also on 4 door.

I don't want to spend the money for a premaid catback setup like Thermal, so i just need to know what size piping to tell the guy to use.

On the side of that question..i already searched and found some answers but i was wondering if there was any particular muffler that is best for this engine? i want something really really quiet and stock looking.

 

2.25 piping is perfect
you don't need 2.5 inch unless you really want to mod it
3 inch is for boost