aFe POWER MACH Force-Xp performance mufflers are designed to provide a nice deep, throaty, and powerful sound on acceleration while maintaining a smooth exhaust note at idle. Constructed out of stainless steel for durability, while the perforated straight through design with heat resistant packing reduces backpressure and maximizes air flow. These mufflers will improve sound, performance and throttle response on your vehicle over the factory OE mufflers. Product Features:409 Stainless Steel For Durability And Rust ResistancePerforated Core and Heat Resistant Packing for Smooth Tone409 Stainless Steel For Durability And Rust ResistanceIncludes Stamped Logo for a Custom Look