Note: Fits 2-Valve Manual GT Models Only 99-03 Bassani complete exhaust systems are made from top quality stainless steel materials. Designed for optimize performance, the headers induce scavenging and increase air flow. The mandrel-bent crossover tubings are used to connect the headers to the mufflers. Built to withstand any environment, these mufflers are precision engineered to produce a distinctive sound while maintaining a high quality look. Even the stainless steel welds are an excellent work of art! Bassani does all of their own tube fabricating, bending, welding, etc., and will not compromise on the quality or thickness of the materials used. Stainless Steel Construction Mandrel Bent Crossover Piping High Quality Muffler Precision Steel Welds Excellent Sound Quality Ceramic Coated Header HP & Torque: 10-12 HP/ 15 ft lbs Torque Installation: Direct replacement of the stock exhaust manifolds, header bolts up to the Y-Pipe/Crossover pipe. No cutting or welding required. Takes between 3 And 6 hours depending on application. Only simple hand tools required All hardware, gaskets, and instructions included. The exhaust bolts on behind the catalytic converter (if supplied) and utilizes the factory hanger locations for a simple bolt-on job. Tech Notes: For Off-Road Use Only