4-2 Upgraded Performance Downpipes Collector Fits: Suzuki GSX1300R Hayabusa 2002-2007 (K2-K7) - Pipe work material: 304 Grade Stainless Steel - Smoother, streamlined internals for optimum internal gas flow. - Accepts OEM silencers and aftermarket silencers. - Ultra light, 3.5 Kgs (7.7 lbs). OEM headers weigh 7 Kgs (15.4 lbs) - Four engine port gaskets included. - 2 Year Black Widow Warranty.
