I still don't know anything about G2 Integra's, so please don't hate all my questions. Does the 90-91 exhaust differ from the 92-93? Is the 4dr same as the 2dr?

Thanks guys!

 

behind the cat they are both the same 90-91 vs 92-93.
4 door b-pipes are longer between the cat and the bend at the rear of the floor pan by about 6 inches, but the rear section (muffler) is the same.

 

Thank you so much!

 

90-91s have a longer cat, therefore the b-pipe is shorter
92-93 have a shorter cat, therefore the b-pipe is longer

What usually happens when you buy a catback for either of these cars, is a 92-93 will come with an extra extension piece for the b-pipe, where as the 90-91 don't.

You can also easily just change the cat to the length you need (good time to upgrade to a highflow). Other than the length of the b-pipe, the hangers and bends are exactly the same.

(PS: Hopefully I didn't get this backwards )