Product Description: 2.5in. Axle-Back; Dual Rear Exit; Non Active Exhaust; Quad Tips; Black Coated Aluminized Steel. STYLE THAT'S WORTH A SECOND LOOK - ARMOR BLK Series exhaust systems crank your vehicle's style dial to 11. The ARMOR BLK series offers the same performance as the other series with an engineered, high-heat black powder coating on the tailpipe(s) and tip(s). Manufactured using heavy-gauge Aluminized Steel tubing throughout the whole system, everything but the tailpipe and tip are left as mill-finish steel for better resistance of damage under your vehicle.