We offer all Volant Exhausts at Lower Prices. Designing the right bends, and the research and development on the muffler- from the amount of backpressure to the smooth exit have made the intake and exhaust a great combo. Volant dynos all exhaust with our intakes or with the stock OE equipment not with other aftermarket systems. So if you already have an intake this is your exhaust. Volant's 4 inch exhaust system for Dodge is made from stainless steel with mandrel bends for the best flow possible.