yes it will but your 2 in. b18b exhaust system will choke it off too much. The minimum you should get is a 60 mm exhaust with a 2.5 in. cat and a tapered flange at the exhaust Bpipe bottleneck....did I hear an echo?blubberbutt on Sep/14/02 said:I have a quick question .. will a JDM ITR catback bolt up to a B18b exhaust system and what is the piping diameter?
the jdm itr header collector at the end is 2.5 in. but the b18b cat and exhaust is way smaller and will choke off any big gain that you could have gotten from it. The ITR stock exhaust is 2.25 in. but you also need to get a tapered flange and 2.5 in. cat for it as well...it too will choke off the jdm itr header. The best scenario is a 2.5 in. exhaust but that would be too big for your engine if all you have is an intake...no cams/cam gears , no piston upgrade, no IM upgrade.chan_icon on Sep/14/02 said:2.5 right ?