The heart of the American Muscle Car system is the Gibson Superflow Muffler with Convergent Flow Technology (CFT). Gibson knows that increasing exhaust flow is critical for improving power and that restriction is the biggest obstacle to increasing that flow. Gibson Superflow mufflers have some of the lowest restriction ratings of any muffler on the market.

Gibson exhaust system components are joined with a “slip fit” where an exhaust system component fits into the larger opening of the next downstream component. This method reduces the turbulence that is common with ‘ball-and-socket” or “flange-and-gasket” joints which can cause power-robbing backpressure.

The American Muscle Car Cat-Back Exhaust System is your choice of stainless steel or aluminized steel. Each comes with highly polished intercooled T304 stainless steel clampless exhaust tips. The system comes with everything required for installation including zinc plated factory style hangers and clamps and detailed instructions. Aluminized systems are warranted against defects in materials and workmanship but not rust through for as long as the original purchaser owns the vehicle on which the system is installed. Stainless steel systems are warranted against defects in materials and workmanship including rust through for as long as the original purchaser owns the vehicle on which the system is installed.