but KYkillerklown that defeats the purpose of the cutout IMO. It is so you can bypass the cats when racing and close it when on the street so you dont get codes. I have been told by everyone here that def b4 the cats for max performance gain!!!
It may defeat the purpose some, but I bought mine for sound only. It sounds nice on a 3.7 and since I leave it open all the time I don't want to look at the check engine light. I have a feeling that most people with the 3.7 buy them for sound and not to race anyways.