MagnaFlow Rock Crawler Series Cat-Back Performance Exhaust System 19428. Bought new for $566 in October, and recently going back to stock for a little while. Great exhaust, very simple install. About 2,000 miles on it, but the warm/cold New England winter has started a good deal of surface rust as you see in the photos. A short bit of elbow grease and Nevr Dull would have it looking like new I ...