Graves Motorsports runs the official Yamaha Factory AMA Supersport 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.