I searched and I read that the N1 has 2.5" piping on it, but I went on the rx7store, and there it says its got 3" piping. I wanna know if I buy the RB 3" DP/Precilencer combo if it will bolt up to an N1 or if I will have to get something fabbed.

 

the 3" dp/presil from racing beat WON"T ! the 2.5" from racingbeat will. i got a RB 3" dp and custom 3" mp going from the dp to catback. so its a bolt on when i get my apexi N1