K&N Engineering · New
K&N 01-17 Harley-Davidson Softail / Dyna FI Performance Air Intake System
MPN 57-1137 · Store SKU knn57-1137
Supplier stock checked 11/7/2026, 2:28:14 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
K&N FIPK air intakes for select Harley-Davidson Touring, Softail, Twin-Cam and Sportster motorcycle models increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N high-flow air filter and cast aluminum intake tube. These intakes come with a die-cast aluminum throttle-body mounting plate and mounting hardware. K&N high-flow intake systems give your Harley an aggressive appearance while providing a significant increase in airflow resulting in more power. K&N FIPK air intakes are CARB exempt and street legal in all 50 states. K&N FIPK air intakes for select Harley-Davidson Touring, Softail, Twin-Cam and Sportster motorcycle models increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N high-flow air filter and cast aluminum intake tube. These intakes come with a die-cast aluminum throttle-body mounting plate and mounting hardware. K&N high-flow intake systems give your Harley an aggressive appearance while providing a significant increase in airflow resulting in more power. K&N FIPK performance air intake systems increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N complete performance intake system. FIPK; H/D SOFTAIL/DYNA FI; 2001-2017 Performance Air Intake System
Manufacturer fitment & guides
Check 57-1137 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
