blackhorse-racing 3.5" dual muffler exhaust tips t-304 stainless steel catback exhaust system compatible with 2003-2010 mazda rx-8 r2/r3 1.3l renesis 13b-msp engines blackhorse-racing <br>stainless catback muffler exhaust system <br>upgrading vehicle’s exhaust system is a great way to build horsepower, free up trapped torque, and improve upon restrictive factory systems. the larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make a world of difference on your vehicle. the net result is lower auto exhaust backpressure, more horsepower, more torque, and a much better sound. <br> <br><b>product description</b> <br>100% brand new, never been tried or installed <br>made of high quality t-304 stainless steel with computerized mandrel-bends for strength and durability <br>i.e. maximizing smoothest high exhaust air flow rate <br>high performance jdm racing design <br>dyno proven to instantly increases 10 -20 horsepower/ low end torque <br>tig welded cnc machine flange for resistance against pressure and corrosion <br>aggressive deep sound while ensures smooth exhaust gas flow <br>increase engine output and efficiency <br>inlet diameter: 2.25" <br>dual muffler exhaust tips: 3.50" <br>major piping diameter: 2.25" <br>easy installation <br>professional installation is highly recommended <br> <br><b>package includes</b> <br>1 x exhaust system <br>hardwares such as gaskets and bolts as shown in the picture above <br> <br><b>compatible with 03-10 mazda rx-8 r2/r3 <br>(fits models with 1.3l renesis 13b-msp engines only)