im looking into buying a full exhaust system for my rex, but i dont no what im looking for. some guys have told me that u needed back preasure and your pipes shouldnt be to large, and others have told me that it doesnt matter how big, you just get better air flow..? i don;t know what direction to go in help me out !

 

what motor u got in there?

 

Backpressure is probably the biggest automotive myth on the net.

http://www.automotiveforums.co....html

 

i have a d16z6 thats built up pretty good..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRX-Crazy &raquo;</TD></TR><TR><TD CLASS="quote">i have a d16z6 thats built up pretty good.. </TD></TR></TABLE>

2.25 will be fine for you

 

Like he said 2-2.25 should be good...If you boost it 3 inch is good. Pending on how much boost.