going from a 2.5 to 3" dp
View Single Post
03-18-2013, 08:55 PM
04 WRX Wagon,
15 WRX 6MT CWP
Won't matter a bit. 3" catted DP is a 3" catted DP. The breathing room is needed up near the turbo, hence the "bellmouth." The invidia DP is also "bellmouth" it just has a divorced wastegate section that plumbs back into the pipe downstream.
of the site do not see these ads.
View Public Profile
Find More Posts by mechatricity