aFe MACHForce XP Stainless Steel 409 Performance Exhaust Muffler - 4" Inlet/Outlet, 8" Diameter - Upgrade for Trucks & Muscle Cars - Enhanced Sound & Power

The aFe Universal fit Aluminized or 409 Stainless Steel Performance Muffler is designed to provide a deep, throaty, powerful sound on acceleration but maintain a smooth sound at idle. This muffler is constructed of either Aluminized steel or brushed finished 409 stainless steel and uses a straight through perforated core with heat resistant packing to reduce backpressure and maximize exhaust flow. You will see increased performance and improved throttle response over the factory exhaust.