K&N Cold Air Intake Kit: Guaranteed to Increase Horsepower: Fits 2001-2017 HARLEY DAVIDSON (Fat Bob, Dyna Low Rider, Wide Glide, Switchback, Softail Slim, other select models)57-1137S SILVER about an 8% power increase

about an 8% power increase Stage 3: stock/mild modified engine

and seals for the reassembly of your entire engine

Stainless steel machined pivot hardware

EAN: 0002484401632

Special gasket kit

K&N Cold Air Intake Kit: Guaranteed to Increase Horsepower: Fits 2001-2017 HARLEY DAVIDSON (Fat Bob, Dyna Low Rider, Wide Glide, Switchback, Softail Slim, other select models)57-1137S SILVER about an 8% power increaseBrand: K&N Color: P Features: ULTIMATE LONGEVITY: 10 Year Million Mile Limited Warranty protects for the life of your vehicle. GUARANTEED INCREASE IN HORSEPOWER: Dyno tested with up to 50% more airflow than restrictive factory box air filter and intake tube BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response. IMPROVED ENGINE SOUND: Hear the power under the hood. WORLD CLASS PROTECTION: Pushing the