Available in two finishes: white tip or chromeWhite tip's silver header coating chemically bonds with the metal, forming a protective skin impervious to corrosion, discoloration and heat up to 2,000°FAll-chrome systems feature all the performance of white tip systems but are finished in show-quality chrome and feature the K-2-style end capK-Series advantages include up to 12% increase in horsepower, 10 lb. to 25 lb. weight savings and improved corner clearanceAll models retain filter access and some use of centerstand; C designates centerstand use and O designates oil filter/drain plug access