How about this setup :
*kamikaze header
*kamikaze 2.5 downpipe
*high flow catalic converter
AND
*stock exhaust

How much big of a difference would it be between getting a catback or having the stock exhaust on???

It might sound weird to someone but I don't like loud exhausts at all.

 

^ try it and let us know what youthink

 

im running a 2 inch pipe on mine. its doesnt sound nething like a honda. it acctually has a deep mellow tone to it. as for gains im not real sure i didnt get to dyno it afterwards,but im sure i didnt lose nething.

 

^ im sure you didnt loose anything...i wish i can dyno a car with 2inch and a 2 1/4...to see what is better for the n/a guys