The Racing Beat REV8 "Street Legal", Cat-Back RX-8 Exhaust System (Single Outlet Tips) for the 2009-11 RX-8 is the perfect replacement for your stock exhaust - a durable assembly offering a real horsepower gain over your stock unit. Our system consists of a 304 stainless steel Racing Beat connecting-pipe, muffler canisters, tubing, flanges, and outlet tips. The replacement connecting-pipe is manufactured using 3-inch (OD) tubing and features cast stainless steel flanges for positive exhaust gas sealing. The stainless steel muffler canisters are each finished with 4-inch, polished 304 stainless tips for an aggressive look. (2009+ RX-8 exhaust systems differ with regards to the positioning of the outlet tips and are NOT compatible with earlier RX-8 models.)
Power Output Utilizing our in-house dyno test facilities, the Racing Beat engineering staff has undertaken exhaust system extensive testing with the RX-8 Renesis engine. Our research has found that simply adding a large-diameter, "straight-through" muffler is very loud, and power gains are only modest. We focused our development efforts on optimizing the power output, while maintaining a moderate, but aggressive exhaust tone.