Originally posted by Andy
Any real muffler shop can make you a test pipe to connnect the 2 pieces, but it will most likely be made of 2 1/4" piping to connect smoothly to the exhaust's B-pipe (your Tanabe most likely is 2 1/4"). Are you planning to eventually upgrade to a VTEC head or upgrade the cams in that thing? A CTR header might be a bit overkill for a stock B20.
Well, I checked in to it and the Tanabe piping is 60mm (2.36"). So that makes a difference of just 1.4", which I'm sure will be covered by the flanges themselves. And I have spoken with my guy doing the swap, and he said he can/will fabricate a test pipe to mate them, so that problem is as good as solved (I hope). So your thinking a CTR header is overkill on a B20? Why is that? And I am just using that header because I got a very good deal on it, but it will be put to an LS block that I am building on the side (for F/I).