Tomei Expreme TI Racing Titanium Catback Dual Muffler (86/BRZ)Fitment Guide: 86 BRZ, 12 21 Description *This exhaust system may be louder with the later model. This all new Ti RACING 86 BRZ exhaust system has been designed to improve the performance at all RPM range from low to mid, and then smoothly shift to high RPM range reducing the well known mid range hesitation. Sub muffler in the main pipe, then split into 2 after axle and 2 mufflers on both sides. This structure helps reduce sound while maximizing