Kraken Automotive Vband Kits consist of high-quality components required to create a leak-proof, gasketless exhaust system with minimal hardware. These kits can be used for manifolds, downpipes, or any other section of your exhaust system. The flanges are made of A105 Mild Steel, the clamps are made of 304 Stainless Steel, the stud and bolt are made of galvanized steel for increased durability over time. We also designed these with an all metal locking nut, far superior to the nylon lock nut when dealing with heat. The flanges are FLAT and do not have the more common male/female flange system. Please make sure you NEED the flat style, otherwise, we recommend the male/female flange. We hope you enjoy your new favorite exhaust mod!