This crossmember-back American Thunder system is custom designed for high horsepower and large cubic inch engines in 1968-1972 GM A-Bodies with a V8 engine. It's a true-dual exhaust system featuring all mandrel-bent 3.00-inch aluminized steel tubing with a built-in H-pipe crossover assembly flowing into a pair of large cased Super 40 Series performance mufflers for maximum power and a deep powerful aggressive exhaust note. The large 3.00-inch mandrel-bent tailpipes are custom bent to tuck up high above the rear end and exit with a slight turn down under the rear bumper. The system is constructed from aluminized steel and includes all necessary hardware and hangers for installation and is covered by Flowmaster's 3-year Limited Warranty.

Features: Super 40 Series Performance Mufflers for Deep Powerful Sound H-pipe Crossover for Maximum Power and Deep Tone Mandrel-bent 16-gauge Aluminized Steel Tubing Includes Hangers and Hardware for Installation Crossmember-back True Dual Exhaust System Does Not Include Header Reducers or Factory Manifold Downpipes Aggressive Exterior Exhaust Tone Large Dual 3.00-inch Tubing 3-year Limited Warranty