Hand-made-in-the-USA Pro ATV Competition full exhaust systems for the 2007-08 Yamaha YFZ450. Big gains in horsepower are achieved while eliminating 5.8 lbs of weight. This high performance exhaust system features a stainless steel head pipe and mid pipe with a titanium or carbon fiber silencer. You will need to rejet with these exhaust systems.
Please note that this system is track only due to no spark arrestor.