Feature●Adjustable EP3 Pulley Kit For All K20 engines●Newest addition to our ever growing parts line-up, because the original factory EP3 idler is fixed and not adjustable.●For some swaps, like a K24 engine swap into a 06-09 Civic, people have even started using the smaller K20 crank pulleys in an attempt to correct the accessory belt length.●Made of high quality Billet Aluminum.The EP3 Pulley kit allows the user to correct the length of the accessory belt by manual adjustment, to keep tension in the perfect service window.Description Fitment: All K-Series Engines With Automatic Tensioner Only Does Not Fit K24Z3 Purchase Includes: 1x Pulley & Bracket 1x 7 Spline Serpentine Belt Hardware All Items In Images Brand: Bull Boost Performance