132" Big-Bore Kit 4.5" Stroke Highlighted Cylinders for 2017-up M8 Models REAR KITS - BAD DAD TOURING Guardian Black heat shields and

Guardian Black heat shields and muffler bodies

Rotors are available in 11

An easy upgrade when changing tappets or cams

ALUMINUM AIR CLEANER ELBOW:

Ease of Installation: Our bars are engineered to be a direct bolt-on replacement bar

132" Big-Bore Kit 4.5" Stroke Highlighted Cylinders for 2017-up M8 Models REAR KITS - BAD DAD TOURING Guardian Black heat shields andThe biggest Big Bore possible with a slip in kit! The S&S 4. 320" bore cylinder kit takes your 107" M8 to 129" and the 114" to 132". Huge bore increase means huge power increase Works with stock crankcases (no machine work) Powder coat finish matches factory finish, MLS (multi layered steel) head gaskets 4. 320" Bore Retains stock engine height Includes Cubic Inch Cam Cover Badge