What is the difference in performance between a test pipe and a high flow cat?
Thread Starter
AudiWorld Super User
Joined: Dec 2004
Posts: 3,589
Likes: 0
What is the difference in performance between a test pipe and a high flow cat?
And also, is there any performance difference between a 400 cell, 200 cell, 100 cell cat?
i know w/a test pipe you cannot pass emissions and the exhaust smells like ****.
w/a hfc you can pass emissions.
but in terms of turbo spool time, both decrease it. but by how much more would the test pipe decrease it? would a test pipe flow better at all RPMs?
i know w/a test pipe you cannot pass emissions and the exhaust smells like ****.
w/a hfc you can pass emissions.
but in terms of turbo spool time, both decrease it. but by how much more would the test pipe decrease it? would a test pipe flow better at all RPMs?
Thread
Thread Starter
Forum
Replies
Last Post
beejohn
S4 / RS4 (B5 Platform) Discussion
4
Aug 16, 2005 04:41 AM
improved just pino
A4 (B5 Platform) Discussion
3
Mar 6, 2002 11:53 AM
Badness
A4 (B5 Platform) Discussion
0
Sep 9, 2001 05:40 PM
