Yamaha R3 Sounds Amazing with the TBR S1R Race Exhaust, but Performance Is Modest

Yamaha R3 with TBR S1R exhaust 5 photos
Photo: Two Brothers Racing
TBR S1R exhaust for Yamaha R3TBR S1R exhaust for Yamaha R3Yamaha R3 with TBR S1R exhaustTBR S1R can for Yamaha R3
Those who plan to get a Yamaha R3 or even wait until its naked sibling shows up might want to consider saving some more and get an aftermarket exhaust. Here's Two Brothers Racing's proposal for your small-displacement Yamaha, a carbon fiber can with impeccable looks that can effortlessly rival those of the R1 or R1M silencers.
The can sports the same minimalist design of other TBR shorty mufflers, showing off the Teflon-coated end-cap made from lightweight magnesium and the shiny gloss of the high-temp resin covering the carbon sleeve.

A rubber-lined stylish mount is standard, and it complements the aggressive TBR badge quite nicely. On the inside, the Two Brothers S1R can has a spiral-wound perforated core, CNC machined aluminium outlet and stamped, sturdy spring-fit inlet. The muffler accepts TBR's P-series dB killers and is supplied with all the necessary accessories for mounting.

The performance boost is modest

Now, if you wonder how much the TBR S1R can will improve your bike's performance, the answer is not too much. The Yamaha R3 is A2-compliant, but its peak power is just under 38 hp, so there is plenty of fun still to be added to the bike. The TBR can only adds 0.77 hp to the peak power figure and one extra horsie at 9,000 rpm.

The max torque figure is improved with 0.92 lb-ft (0.68 Nm) at 3,800 rpm, while the weight of the system decreases from 6 lb (2.78 kg) to 3.25 lb (1.47 kg). The system works with a catalyzer and retains the O2 sensor.

Now, if you feel like the cool sound and true racing looks are worth $600 (€537) of your money, you can buy the TBR S1R and have fun. Honestly, we expected a bit more from this can on the performance side.

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