S&S CYCLE El Dorado Dual Exhaust System - Chrome - Black Thruster 550-0699C Automotive/UTV Tires - On Road MLS (multi-layered steel) head gaskets

MLS (multi-layered steel) head gaskets

Fits directly in stock crankcases with no modifications

reusable and pre-oiled

625" big bore cylinder case for any stroke up to and including 5" and most stock length connecting rods

S&S CYCLE El Dorado Dual Exhaust System - Chrome - Black Thruster 550-0699C Automotive/UTV Tires - On Road MLS (multi-layered steel) head gasketsEl Dorado Dual Exhaust System Chrome Black Thruster Improved power and torque, Oxygen sensor location same as stock, Includes adapters for use of wide band or stock oxygen sensors, Use two high flow cats to increase exhaust flow while providing just the right amount of back pressure for optimum torque, Relocation of cats to 4 1 2" mufflers reduces heat on rider, Produces a deep bass rumble exhaust note throughout the RPM range, 4 1 2" billet end caps,