The Sinister Diesel CAT fuel filter adapter allows you to install an ultra-fine 2 micron CAT fuel filter in your 2001-2015 6.6L Duramax powered Chevy or GMC 2500 and 3500 trucks. Installation is straightforward and does not require any major modifications to get you increased diesel fuel filtration efficiency and capacity to help prolong the life of your fuel system and diesel injectors.
