Raised exhaust D port floor stainless steel shoes (2) for increasing flow and performance for all 650s, 750s & 850s

This shape is taken from the world famous Harley XR 750 flat tracker. The exhaust port floor is raised for increased velocity and flow in exacuating spent gasses and allowing for a fuller intake charge. Made of steel. An easy drop in kit – simply align with valve guide and slide into place (more info).