MBRP 19-24 GM 1500 Silverado/Sierra 2.7L Blk-Coated Alum. Steel 3in Cat-Back Single Side 4in Blk TipMBRP 19 24 GM 1500 Silverado Sierra 2. 7L Blk Coated Alum. Steel 3in Cat Back Single Side 4in Blk Tip STYLE THAT'S WORTH A SECOND LOOK ARMOR BLK Series exhaust systems crank your vehiclea**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