Thread: What is the difference between HFC and test pipe?
View Single Post
Old 07-06-2010, 03:30 PM   #32 (permalink)
nolan1016
Base Member
 
Join Date: Apr 2010
Location: Lubbock
Posts: 214
Drives: 09 Nissan 370z A6
Rep Power: 15
nolan1016 is on a distinguished road
Default
Quote:
Originally Posted by Westwood View Post
thats what i said 12" = loudest +tp = best gains. i was looking at the dyno sheets and test pipes have a few more hp compared to the sheet with hfc's
non resonated would be louder then 12", if thats what you meant.
nolan1016 is offline   Reply With Quote