Why Choose Our Catback Exhaust? We use only the highest quality materials and construction in our catback exhausts. Our systems are designed to fit your customer's vehicle perfectly and provide years of trouble-free performance. We also offer a lifetime warranty on all of our products, so you can be sure that your customer's investment is protected. Features: . 3" mandrel-bent stainless steel tubing . Choose Between Polish Tips or Black Tips . Aggressive tone with no drone . Can be used with the stock downpipe or our new downpipe Benefits: . Improves horsepower and torque . Gives the Explorer ST a more aggressive sound . Reduces weight . Improves fuel economy . Comes with a lifetime warranty