The Big Gun Evo Mini Series was designed to deliver maximum horsepower and torque gains throughout the RPM range. Made from 0.049" stainless steel tubing and an aluminum muffler canister, the Evo exhaust system is much lighter than stock units. The sleek muffler design also allows for maximum clearance to avoid your exhaust from hitting the rear brake caliper. Lighter than stock. Deep, rich sound. Ceramic-coated 18-gauge mild steel stepped or tapered head pipe construction. Internal / external ceramic coating with satin silver finish. Hard anodized 6061 T-6 aluminum silencer. Custom stainless steel heat shield. New euro-style end cap like the larger Big Gun exhaust systems to give the total 'factory look'. 6061 T-6 billet aluminum outlet in end cap with removable tip for spark arrestor. High-performance endless-strand silencer packing with stainless steel screen.