This Sinister Diesel Coolant Filter and amp; Oil Filter Kit includes all mounts and fittings needed for installation and is machined from 6061 billet aluminum. The filter boss includes 2 threaded inlet ports and 1 outlet port. We recommend replacement of the first filter at 500 miles and replacement of the second and third filters after 3,000 miles each. After three filter changes, replacement can be done once a year.Features:Coolant and Oil Blocks are CNC Machined Billet Aluminum, Removes casting sand and particulate in coolant that's often overlooked, Improved water pump life, Extend the life of your engine components and oil with additional 2-Micron filtration, Abrasion resistant stainless braided oil lines and reinforced silicone coolant lines, No drilling required; Mounting bracket installs into factory holes, Can be upgraded to Cat Coolant FilterIncludes:(1) Sinister Diesel Coolant Filtration Block, (1) Sinister Diesel Oil Filtration Block, (1) Sinister Diesel Oil Filler Cap, (1) Mounting Bracket, (2) Braided Stainless Oil Lines, (2) Silicone Coolant Lines, (1) Amsoil Oil Filter, (1) Wix Coolant Filter, Optional:(1) Solid Steel Armor Plate, All necessary hardware for installation; Note: Will not work with aftermarket Power Steps