The athena top end race gasket kit for gas gas ec250f 2013-2015 is part of the latest collection from athena.Features: specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during mid-season kit includes a top-of-the line mlss head gasket and two or more premium-quality base gaskets of different thicknesses to optimize engine compression ratios gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression kit does not include valve stem seals, rubber parts, shims, or other fiber gaskets. Specifications: engine type: 4-stroke material: mlss multi-layer stainless steel product name: gasket kit style: race type: top end units: kit to fit: gas gas ec 250 f 2013 all models gas gas ec 250 f 2014 cami all models gas gas ec 250 f 2014 racing all models gas gas ec 250 f 2015 racing all models gas gas ec 300 f 2013 all models gas gas ec 300 f 2014 racing all models gas gas ec 300 f 2015 racing all models yamaha wr 250 f 2001 american models yamaha wr 250 f 2001 european models yamaha wr 250 f 2002 american models yamaha wr 250 f 2002 european models yamaha wr 250 f 2003 american models yamaha wr 250 f 2003 european models yamaha wr 250 f 2004 american models yamaha wr 250 f 2004 european models yamaha wr 250 f 2005 american models yamaha wr 250 f 2005 european models yamaha wr 250 f 2006 american models yamaha wr 250 f 2006 european models yamaha wr 250 f 2007 american models yama...