The popular RC-40 exhaust system has been updated. All retain the optimum size 1.75" tubing for maximum performance and efficiency, but we now offer a choice of tailpipe size and configuration. This is a stainless steel centre exit with large bore 2.25"outlet. Front pipes come either "straight through" for use only with the rear exhaust or with a built-in resonator for quieter twin-box systems. All tail pipes are highly polished with rolled edges. Stainless steel front pipe with intermediate resonator to make two-box system. Connects from lcb to rear exhaust.