Originally Posted by Skelly_GSR
the jdm header will be longer then your usdm header, so fitment with the usdm length exhaust will not be good, you will have to modify it
Ummm, no, the JDM header is NOT a different length than the US ITR exhaust mani. The cat IS a different length.
Originally Posted by Skelly_GSR
2kblktyper.... (hytech is ment to be ran with hytech header and no cat, but you can put a can on.
Hytech is meant to be run how ever you want to run it. Hytech sells Renault brand cat with its header back exhaust. Carsound cats are also known for being VERY high flow, better than almost anthing else out there. So a carsound cat would also be a great match for whatever header you get, just get the right size.