Review on 🏍️ High Performance Black Oil Filter for Harley Davidson & Buell Motorcycles, Fits 1996-2018, K&N KN-171B, Single, Designed for Synthetic & Conventional Oils, Includes 17mm Nut by Manny Darawi

When you're tired (or don't know you're paying too much for too little), buy HD filters. It's a great choice. HD filters (in black) cost at least $5 more and have less than half (63 square inches) the filter area; These K&N filters are approximately 165 square meters. inches of filter area. Filter area, which is partly why it allows 25% better passage than OE when combined with a bypass that opens at 14psi. 63 square inch HD filter. and a bypass that opens at 10psi, so it spends most of its life just passing oil.