FMF PowerCore Goggles - Core - Cyan - Blue Mirror F-50051-00004 2601-3183 Supertech M10/M8 Helmet Crown Pad Using the M4 header saves

Using the M4 header saves you 10lbs and produces 5+ horsepower over the stock pipe

Dyno charts shown (2017 model) are with the Graves specific mapping and FTEcu ecu tuning kit

All adult FMF goggles share the same lens and tear-offs

plug-and-play installation

75-inch muffler bodies bell out at the end to four inches and are capped off with black powder-coated

FMF PowerCore Goggles - Core - Cyan - Blue Mirror F-50051-00004 2601-3183 Supertech M10/M8 Helmet Crown Pad Using the M4 header saves40 mm wide silicon coated strap keeps goggles in place Anti fog coated polycarbonate lens for clear vision Dual layer face foam manages sweat 9 retention points secure lens in frame Supports triple post tear offs