Check the listing for details. JRSC High-boost pulley 3 Inch B16 B18 Jackson Racing Supercharger 3" b series. Color: Silver, Condition: New. Listed at 68.00 USD. 1320 Performance 3.0 Pulley for the JRSC superchargers For Honda / Acura with belt keeper raiserOur special design with both side of the pulleyraised to keep the belt inside the pulley our design has successfully reduced the belt jumping or belt come off track issue before the new pulley at the drag strip or track eventafter 5-7 throttle races, the belt would skip a rib or fall off the pulley after the new pulley design after 30 full throttle races the belt stay put. Fits Jackson racing supercharger for B series engine. 1991-2001 Acura Integra LS/GSR 1997-2001 Acura Integra Type-R / SI 97-01 Honda CR-V with B20 engine. (Warning: due to b20 use a bigger crank pulley extra boost is to be expected) Due to many engine setup, crank pulley used. alternator steeper pulley is used and also temperature and elevationdifferences many different boost level will be experienced. but on a standard GSR engine setup with all original crank pulley at sea level around 10 PSI can be expected from the upgraded pulley. Supercharger Shaft Diameter is 0.64" (~5/8") Pulley Offset Measurement is 0.8" (20.33mm)Pulley is made from Aircraft 6061 T6 billet aluminum. Fitment Note: Please note: Jackson Racing made a very small number of supercharger kits with a pulley that is very similar to this one, with a slightly longer offset, please double check your offset before purchasing.NOTE:It is strongly recommended that all installs be done by a mechanic or automotive specialist.ITEM CAN NOT be returned or swapped out after they have been bolted down (revealing bolt impressions).PLEASE MAKE SURE THIS KIT FITS YOUR VEHICLE BEFORE BOLTING THEM IN PLACE.WARRANTY: Unless otherwise stated in the listing, we will guarantee the product from free of defect for one full year (12 months) from the date of purchase. The warranty does not cover abuse or damages caused by improper use. Any modification to the product will void the warranty. When a warranty claim occurs, we will choose to repair, exchange, or refund the payment at our discretion. RETURN: In the case of returning or exchanging the product, you must email us first to obtain a returned merchandise authorization (RMA) number. Customer will be responsible for paying all shipping & associated costs for sending the product back to us. The shipping that we initially charge is not refundable. All returns are subject to a 20% restocking fee and the returned product must be in unused, original condition. We will not take any returns or exchanges after 30 days from the date of sale.