MEGAN RACING DRIFT SPEC CATBACK EXHAUST SYSTEM 02 + ACURA RSX ( TYPE - S ) MR-CBS-AR02S Made of 100% SUS-304 stainless steel with polished finish. Pipe size is 2.5" Producing strong, deep, and noticable sound Gain 10-15 more horse power, faster throttle response Direct bolt-on application Comes with gaskets, bolts, & nuts