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Junior Member
I have an jdm obd1 gsr swap in my 94 civic cx hatchback and don't know what exhaust to get beacuse the piping on the gsr is 2 1/2 .. I was thinking about going 2 1/2 or even 2 3/4custom piping all the way with an type one titanumin muffler. (can be found at www.aj-racing.com)

My friends think i should do the 2 1/2 piping then got with the universal mufller of skunk 2, or hks hiper, dunk, or even apex'i n1.
Also what piping size would be best?
Also should i gat an cat. convert?

any suggestion would help me alot.