The American Thunder headers back exhaust system for the 1966-1967 Ford Fairlane is constructed from 2.50 in. mandrel-bent 16 gauge aluminized steel tubing to maximize the exhaust flow and comes complete with an H-pipe crossover to equalize the exhaust pressures and eliminates backrap on deceleration. The large case Super 50 Series performance mufflers provide a deep powerful sound and maximum performance flowing into the mandrel-bent tailpipes. The Super 50 mufflers also incorporate built-in resonators keeping the interior resonance down to a minimum. The system is finished off with large 3.00 in. angle polished stainless steel tips and includes all necessary parts, hardware and instructions to complete the installation. All aluminized steel exhaust systems are covered by our 3-year Limited Warranty.