
Most decats ive seen on ebay are 3" bore.




Note my exhaust system is an apexi hayabusa but im guessing that it connects to a standard downpipe/cat so it must be 2.75" at the cat end.





help a noob please guys!
Moderators: IMOC Moderators, IMOC Committee Members
.
.the only thing I can promise for sure is slow progress.
just have this niggling thought that if I rip out the wiring, then the car will never get out of the garage again.![]()
craig_mr2_mk1 wrote:Turbo's don't need to have a Cat anyway, As all tubby's are imports there's no emmisions data recorded so should be put through on a pre 92 test.