so I just purchased my FC and it seems to have a Racing Beat turbo back. my question is, can another aftermarket (HKS) catback mate up to the racing beat downpipe? im new to RX-7s and wasn't sure if Racing Beat was one of those companies that their stuff only mates up to their products, and no one else lol. thanks!

 

Their downpipe is meant to bolt up to their presilencer or a resonator/midpipe/cat of the same length.. then to the catback.

So you will need to bridge the gap between the end of the downpipe and the flange of the catback. It's like 22 inches, but don't quote me on it. When i got my racing beat downpipe I cut up some cheapo downpipe and midpipe setup to create what i needed to bridge the gap between my RB header and RB catback.

 

OP - to verify what you have, measure the diameter of the down pipe. If it's 3", it's most likely the RB full system, that goes from the turbo to the tailpipes, and is NOT compatible with stock or other brand aftermarket cat-back systems. If it measures only ~2-1/2", then it's the separate DP & pre-silencer combo RB sells that IS compatible with stock/aftermarket cat-backs.

 

awesome thanks for the info. ill have to measure it up