16 gauge 1-3/4” primaries2.5” collector18mm and 12mm O2 bungs, flexible tuningFits directly under factory heat shieldsMounts with factory hardware and crossoverSignificantly reduced heat footprintSpherical port caps to insure proper sealingIncreased performance potentialSuperior soundEasy installationMade in the U.S.A.Includes gasket seals, O2 bung plugs and crush washersFits with OEM or “slip-on” OEM replacement mufflers for 2017+ touring models