Gotta 00 si cant decide on header, toda is way out of budget. Will there be fitment issues with a DC JDM 4-1? Anyone have this on their Si's? What exhuast will be compatible? Should I get a High flo or Test pipe? Please help NA gods!!!

 

yes it will work in the EM1's, yes you should get a 2.5 high flow cat, or test pipe, all exhaust should be compatible

 

yeah i got it one my em1. works great. clearance is good. i got the J's racing test pipe... i would highly recommend it!