Headers and High flow converters!!
Apr 23, 2006 | 12:42 AM
#11
stock cats suck because they're 2.5 inch and the collectors on any header is probably 3 inch. mine just sucks because it goes 3 inch collector to 2.5 inch Y pipe w/ stock cats, then back into 3'' corsa cat back.
Thread
Thread Starter
Forum
Replies
Last Post
LCHEE
GM Drivetrain & Suspension
10
Oct 24, 2020 04:10 PM
BIGD4504
GM Engine & Exhaust Performance
10
Jul 28, 2015 11:46 AM