I am planning to get a greddy sp2 exhaust for my 93' fd, but ive got a problem. I also was going to buy a rx7 store downpipe and high flow cat, but i really want a midpipe. The problem with getting the midpipe is that when its time for emisssions is that i would have to put the stock cat back on but it wont fit on the downpipe. Any ideas??

 

don't sell anything and go back to stock when emission time comes around

 

the after market dp should bolt right up to midpipe or stock cat if im not mistaken

i had a hks dp and bolted to my stock cat just fine and my mazdatrix mp worked just as well

just get a hi flow cat man and get the best of both worlds

 

do you have a single turbo? Most dp mp combos fit fine. Addtionally the mp can usually just be swapped out with the stock cat come emission time.

Are you running some type of boost controller?
https://www.rx7club.com/forum/showth...ht=midpipe+ECU

 

Yeah, buy a quality made downpipe that actually has good fitment, and then you won't have to worry about it lining up with the stock cat.

 

My HKS DP fits the stock cat just fine....

 

just curious as to how much ^^ all this is gonna run ya..just for my own info..so i know how much of my arm to cut off...::chuckels::

 

thanks guys i think ill just go with the high flow cat and not have to worry about it and everything shipped with gaskets cost me 952 dollars.