Rinehart is proud to introduce the all new HP40 Slipons. Made to the same exacting standards as our HP45 and DBX Touring Slipons, this free flowing 4” slipon is a perfect fit for your factory 2 into 1 header, and will give you the deep, throaty, Rinehart Rumble you know and love and, with our spiral core baffle technology, the HP40 will also help your bike breathe, increasing the performance for a snappier, more responsive throttle.