so right now i have 2.5" piping with a cat on stock headers with my B series motor.....i bought the r-crew headers for the K swap and i was wondering if my setup will bolt on or do i need to buy an all new exhaust??? Please help me out!!!
Oh and its a cat with a full buddyclub spec 2 exhaust and its loud as hell and i love it!!! LOL

 

pretty sure the r-crew header is going to be longer and therefore not going to bolt right up to your stock eg b-series exhaust and will require modification

its a performance header so the length was designed to make power and not for fitment.

budget swap headers like DCsports are more likely to bolt right on to oem or b-series chassis specific exhaust.