Ford Fiesta ST Forum banner
1 - 4 of 4 Posts

· Registered
Joined
·
490 Posts
Discussion Starter · #1 ·
Hi Guys, looking at having a custom exhaust built, Downpipe, de-cat and catback. My thinking is 76mm for Decat and Downpipe and 63mm for the catback. Reason for going 63mm for the catback, is because we run at very high altitude.

Any comments?
 

· Registered
Joined
·
1,150 Posts
Turbo = back pressure
The less restriction, the more efficient your turbo



 
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top