Description
Two Brothers Racing – 2015 Yamaha R1M Slip-on Cat Eliminator Exhaust
| Performance Specs | |||
| Stock | TBR | Difference | |
| Peak HP | 168.94 hp | 172.28 hp | +3.34 hp |
| Peak Torque | 77.63 ft-lbs | 78.01 ft-lbs | +.38 ft-lbs |
| Max HP Gain | – | 4.11 hp @ 11,500 rpm | – |
| Max Torque Gain | – | 2.37ft-lbs @ 5,000rpm | – |
| Weight | 17.5 lbs | 4.5 lbs | -13 lbs |
| Catalyst | yes | no | – |
| O2 Sensor | yes | yes | – |
The S1R exhaust is the state-of-the-art product from Two Brothers Racing. The system features carbon fiber highlighted by a natural finished Aluminum outlet and stamped spring-mounted inlet for ultimate durability.
The S1R cat-eliminating exhaust from Two Brothers Racing showcases a race design while increasing all-around performance. All of our carbon parts are made with a high temp aerospace grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow then impregnated with the high temperature resin under very tight tolerances.
- Aerospace high-temp carbon fiber
- Teflon coated magnesium end-cap
- Stamped spring-fit inlet
- Aluminum CNC Machined outlet
- Rubber-lined styled mount
- Spiral-wound perforated core
- Accepts sound reduction tips
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