Which X-pipe?
Thread Starter
Racer
Joined: Sep 2000
Posts: 273
Likes: 0
From: Valley City ohio
Which X-pipe?
Ok,I've decided on the Kooks LT 1 3/4 headers.In looking at the X-pipe,it has 2 different sizes.One is 3x2.5 and the other is 3x3.My cat back exhaust is Ti. I will be going with the high flow cats.thanks guys for the help
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
No HP gains in sizing an x pipe-- ( 3" or 2.5")-Just for ease of installation -whatever fits your car the easiest ----IMHO
Also : using hi flow cats ?? WHY ? not much of a HP gain and they are so pricey--$$$ best spent elsewhere-- 2-5 RWHP at best-and can create some annoying resonance-If you go to the "bullet" style cats they won't pass smog--as they won't light off--they are cheaper however
But whay mess with it---The Stock C5 cats flow very well
Also : using hi flow cats ?? WHY ? not much of a HP gain and they are so pricey--$$$ best spent elsewhere-- 2-5 RWHP at best-and can create some annoying resonance-If you go to the "bullet" style cats they won't pass smog--as they won't light off--they are cheaper however
But whay mess with it---The Stock C5 cats flow very well
