This Force II® exhaust system is designed as a Crossmember-Back system for the 1963-1967 Chevrolet Corvettes, and is perfect for the person looking for a moderate exterior sound with a mild interior exhaust tone, with all of the performance benefits that you would expect from Flowmaster®. This bolt-on system is for Small Block V8 engines and features specially tuned stainless steel 50 Series™ Delta Flow® mufflers and a Scavenger Series® X-pipe for maximum power and a deep unique tone. The tubing is all 2.25-inch mandrel-bent stainless steel and includes a pair of polished 2.25-inch stainless steel tips exiting within the factory exhaust bezels. The system is covered by Flowmaster's Lifetime Limited Warranty and includes all necessary parts, hardware and installation instructions.