K&N Engineering RC-1824 Clamp-On Custom Oval Tapered Air Filter - Chrome End Cap engine-crankcase-components-crankcases 1987-1999 Harley Davidson FXSTC Softail

1987-1999 Harley Davidson FXSTC Softail Custom

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K&N Engineering RC-1824 Clamp-On Custom Oval Tapered Air Filter - Chrome End Cap engine-crankcase-components-crankcases 1987-1999 Harley Davidson FXSTC SoftailFlange Angle or Position: Offset. Filters Pre Pkg.: 4. Filter has molded in velocity stack. Custom air filters can increase horsepower up to 12%. Clamp on style is designed for all racing motorcycles. Allows considerably more air flow than stock air box set up. Carburetor adjustment will be required; usually a 25% increase in jet sizes can be expected. Available with chrome or black rubber end caps. NOT STREET LEGAL. These filters are legal ONLY for