Flowmaster introduces their new stainless steel American Thunder cat-back system for the 1975-1979 Chevrolet Corvettes with 5.7L, V8 engines. This fully mandrel bent 2.50" system features 50 Series Delta Flow mufflers and 3.00" polished stainless steel tips. As an American Thunder system it will typically produce a moderate interior and exterior sound level with all of the performance benefits that you would expect from Flowmaster. Constructed in durable 409S stainless steel, the system is covered by Flowmaster's Lifetime Limited Warranty. All necessary parts and hardware are included for a great fitting installation. Note: To complete the system for these applications, Flowmaster also offers a direct fit converter, part # 2010036 (49 state legal), and manifold Y-pipe # 81087.