Graves Motorsports Exhaust Headers Yamaha Yxz1000R Graves Motorsports Slip-On Exhaust offers the option of titanium headers. All Graves exhausts are manufactured using an exclusive pipe bending technique known as mandrel bending, which prevents any creases or distortion in the shape of the exhaust pipes. Features: Aerospace grade titanium alloy Machined joint fittings Billet hard anodized 7075T651 aluminum flanges Made in USA