Used for 1 month. RS*R catback fit 94-01 non-vtec and 97-01 Type R. Can be modified to fit 94-01 GSR & Civics as well. Muffler is stainless steel..Piping is 2 1/4" inches. This exhaust is very hard to find in the US. Note...this is not the new Invidia one, its the original RS*R catback. Email me for pics. No scratches/dents/rusts. Email me with offers