09-14 YZF-R1 Two Brothers Black Series Dual Slip-On M2 Carbon
09-14 Yamaha YZF-R1 Two Brothers Racing Black Series V.A.L.E. Dual Slip-On Exhaust M2 Carbon Yamaha’s R1 has caused quite a stir since its introduction. If you thought people were impressed with the bike before, wait until they see it with a Two Brothers Racing exhaust system installed on it.Our Dual system will reduce weight by almost 4 lbs, add 6.3 horse power @ 6200 RPM and +5 ft. lbs. of torque @ 6100 RPM. Overall you increase...