Graves Motorsports runs the official Yamaha Factory AMA Superbike team here in the States - they have many AMA wins and a Superstock Championship. Their 990 Super Duke system is designed and engineered by Graves for performance and a huge weight reduction. This system is sure to turn some heads.
Graves Slip-On Exhaust System = 7 bs. 5 oz. (-18.0 lbs). Stock Muffler = 25 lbs.
Fits All 990 Super Duke.
Graves Slip-On Exhaust System = 7 bs. 5 oz. (-18.0 lbs). Stock Muffler = 25 lbs.
Fits All 990 Super Duke.
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