The T1R exhaust b-pipe is designed in conjuction with the for any after market axle-back (Bolt-on) muffler to provide the maximum exhaust flow without adding additional weight. Made out of SUS304 aircraft stainless, resonated with 63mm piping approx. 2.5″.
This b-pipe directly replaces the stock Civic USDM Si /EX / Canadian SiR / Si.