Two Brothers Yamaha YZF-R1 09-14 M-2 Black Series Slip-On Exhaust
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Our exclusive V.A.L.E. mounting system eliminates the need for springs resulting a more secure mounting. Huge horsepower gain of 6.7hp @ 7500rpm (right where you can use the extra power) and a peak horsepower of 4.1hp @ 11,500rpm. Total peak horsepower leapt from 152.7hp to 156.8hp simply by installing the Twobros M2 slip-on exhaust system!
Rule the road with the new subtly sophisticated exhaust: The Black Series. The new Black Series exhaust from TBR reinvents elegance and quiet richness with the roaring performance you demand.
The Two Brothers Racing Black Series exhausts downplays the raw power these systems unleash. Dyno tuned and track tested, like all TBR exhausts, the Black Series are aimed at those who want Absolute Top Level performance but smart and understated esthetics.
The Two Brothers Black Series offers the same great specs as the V.A.L.E. M-2 with added features: