S&S Cycle 2-Into-1 Lava Chrome Sidewinder® Exhaust System - Race Only727519646 Product Description System features the mirror finish of traditional chromium combined with a smoky radiance that produces a unique dark look that is still reflective Finish is durable and easy to clean Stainless steel stepped header pipes Machined aluminum end cap Includes adapters that allow use of wide band or stock O2 sensors Increased power and torque Deep performance exhaust note Made in U. S. A.