Radiant Cycles Shorty GP Exhaust Motorcycle Slipon Short Muffler Pipe for 2001-2005 Yamaha FZ1 BLACK Fits 2001-2005 Yamaha FZ1 Simple Installation: Remove your stock muffler and slip this new pipe in its place. Tighten clamp. High Quality Finish: Powder coated to provide an excellent finish that matches the factory parts. Heavy Duty Construction: Completely welded design that will provide years of hassle free use. 60 Day Warranty: Radiant Cycles Shorty GP Exhausts come with a 60 day, 100% satisfaction guarantee.