Yoshimura Street TRC-D Dual Exhaust Slip-On System '09-'14 Yamaha YZF-R1

The TRC-D is a dual-outlet version of the race-proven TRC and boasts a carbon fiber cone end-cap. The TRC-D requires no inserts or restrictions, increasing muffler packing life and providing five percent more open exhaust outlet area and as much as three decibels lower sound output (compared to the standard open TRC). The TRC-D also offers greater gains in low- and mid-range power without restrictive inserts.