This system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system deletes the factory resonator and replaces it with 3* tubing to produces a moderate exhaust tone. Utilizing a factory style flange this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. This mid-pipe uses a heavy duty flex pipe with an internal interlock liner for added strength and durability. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability. MACH Force-Xp 3 IN 304 Stainless Steel Front Resonator Delete Pipe Audi A4/A5 (B8) 09-16 L4-2.0L (t) Audi A4/A5 (B8) 09-16 L4-2.0L (t)