BlackWorks Racing Slim Fans are designed to be much smaller than your factory fan while out performing it. These Slim Fans will give you a lot more clearance in your engine bay for more important things like a turbo kit or some bad ass race header. If you are in a bind for room because you are doing a J32 swap in a Civic, LS1 in a 240SX, or something else wild your problems will be resolved with a BlackWorks Racing Slim Fan. With purchasing one of the BWR Slim Fans you will not only get one of the best fans you will also be BLOWN away by its power and performance!!! The BWR Slim Fans come with an unsurpassed 1-year warranty.