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Graves EVR Slip-On Exhaust Yamaha R1 / R1M / R1S
The Graves EVR Exhaust offers the peak power of a full system without sacrificing any low-end usable power. This was possible thanks to the Grave's Exhaust Valve Race Technology. Already incorporated into the factory Yamaha bikes, EVR features an ECU controlled butterfly valve that provides great power output and drivability while maintaining the great looks of a shorty muffler. Additionally, the sound output is tamed at low RPMs but is unrestricted when the throttle is wide open. This would not be possible with a sound insert as it would rob power from the entire RPM range.
Graves Slip-On Exhausts are designed for the rider seeking top of the line performance, fit, finish and value. Developed using the same technology that has powered the Monster Energy Graves teams to consecutive AMA Superbike championships, the Graves Everlast packing produces an exhaust note like no other and holds up longer to the extreme conditions of a high-revving motorcycle. Graves incorporates advanced welding processes to reduce oversized welds that can cause excessive heat buildup. A special pipe bending technique known as mandrel bending is used for all Graves exhausts to prevent wrinkles and ovalization of the exhaust pipes. All of this combined not only streamlines the appearance of the exhaust systems but saves more than 10 pounds compared to the stock exhaust!
- Grave's EVR (Exhaust Valve Race Technology)
- Diamond shaped muffler design that matches the Yamaha
- Integrated exhaust hanger
- Aerospace grade titanium connecting pipe
- Machined joint fittings
- Eliminates catalytic converter
- Includes 1 Auto Tuner Style Lambda sensors
- Includes Flashtune EVR activation map code
- Made in USA
|Unit||Stock Exhaust||Graves Exhaust||Max Gain|
|Noise Level||db||91 at 5000 rpm||108 at 5000 rpm||+ 17|
Note: Requires Flash Tune Kit (sold separately) to use the included EVR activation map code.
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style Titanium/Titanium||RevZilla Item #1238909||MFR. Product #EXY-17R1-CVTT||AvailabilityIn Stock: Requires 1-3 business days of lead time prior to shipment|
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Shipping & Returns