304 STAINLESS EXHAUST. 304 Performance Exhaust has been supplying the automotive aftermarket with quality products for 10 years. You will find our products in the finest dealers, showrooms, road-shows and catalogs in the nation and abroad. Our commitment to quality and innovation is paramount and our goal is to exceed the expectations of our market, our customers and own rigorous standards of excellence. Our latest Big Rig products are designed to bring the same high value and high quality to the large car market and provide a truly unique alternative our owner operator and fleet oriented customers. 304 Stainless Exhaust Stacks for Big Rigs are available in 304 Polished Stainless Steel. So, whether you're a traditionalist or a trend-setter, we have a product for your rig that is certain to please. We also offer a full line of Stacks, Tips and Systems for your diesel or gas pickup truck. This light-duty product line features our ever-popular Monster Stacks and Tips for diesel applications and our great sounding exhaust systems for gas trucks. We are dedicated to providing our customers with the best materials and craftsmanship available...We sweat the details!