Circuit Sports Improved Design 3 Hole Exhaust Hanger Bushing replaces your worn factory hanger bushings. These bushings are 50% stiffer than the stock bushings. With the extra stiffness, the exhaust system will be held in place while driving and will cause less chances of any exhaust leaks because vibration and movement of the exhaust system is greatly decreased with new bushings. A very affordable and cheap upgrade. Recommended when installing new exhaust systems! Price is for 1 exhaust bushing.