KN K&N 33 replacement air filter k & N air filter airfilter oil filter performance intake kits 57A apollo more power 57 57I 69 K&N TYPHOON 69 COLD AIR INTAKE SYSTEM honda kawasaki yamaha suzuki aprilia ducati triumph harley davidson. HARLEY DAVIDSON FXDWG3 88 CI 2001 K&N KN Air & Oil Filters Motorcycle. GENERIC PRODUCTS FEATURED IN GALLERY IMAGE ABOVE. The actual filters supplied are shown below (out of box). Combo Kit Type: AIR FILTER & OIL FILTER TWIN PACK. K&N Part Numbers: HD-1499 + KN-171B. Engine Size: 88 CI. Engine Type: 88 CI. THE ACTUAL K&N FILTERS YOU WILL RECEIVE ARE SHOWN BELOW. Quantity Information: We supply this combo pack as 1 air filter and 1 oil filter, unless otherwise stated, so if your engine needs more than one of each filter, then simply adjust the quantity required before you order. We list the entire range of K&N!