K & N Filters Cold Air Intake System (MPN: 57-1122)

Enhance your Harley's performance with improved airflow and throttle response.

The K & N Filters Cold Air Intake System is engineered for select Harley-Davidson Touring, Softail, Twin-Cam, and Sportster motorcycle models. This system replaces the restrictive stock air cleaner with a high-flow air filter and a mandrel bent aluminum intake tube, designed to significantly increase airflow and horsepower. The aluminum tube features a high-quality finish and is complemented by a washable and reusable lifetime air filter, ensuring long-lasting performance.

This intake system not only enhances engine performance but also improves throttle response and engine sound, providing a more aggressive riding experience. It is street legal in all 50 states and is built to last, with a service interval of up to 100,000 miles depending on driving conditions. Installation is straightforward, typically taking 90 minutes or less, making it accessible for most motorcycle enthusiasts.

Features

• Guaranteed To Increase Horsepower
• Designed To Improve Throttle Response And Engine Sound
• Aluminum Tube With High Quality Finish
• Washable And Reusable Lifetime Air Filter
• Street Legal In All 50 States
• Lasts Up To 100,000 Miles Before Service Is Required (Depending On Driving Conditions)
• Easy To Install, Usually In 90 Minutes Or Less

Specifications

• Manufacturer: K & N Filters
• Manufacturer Part Number: 57-1122
• Recommended Use: Street
• Tube Finish: Natural
• Tube Color: Black
• Tube Material: Polyethylene
• Filter Color: Red
• Estimated Install Time (Hours): 1
• Filter Material: Cotton Gauze
• Protection Type: No Protection

Compatibility / Fit

• 2008-2016 Harley Davidson FLHR Road King
• 2008-2013 Harley Davidson FLHRC Road King Classic
• 2008-2008 Harley Davidson FLHRSE4 Screamin Eagle Road King
• 2008-2009 Harley Davidson FLHT Electra Glide Standard
• 2008-2013 Harley Davidson FLHTC Electra Glide Classic
• 2009-2012 Harley Davidson FLHTCUTG Tri Glide Ultra Classic
• 2011-2012 Harley Davidson FLHTK Electra Glide Ultra Limited
• 2015-2016 Harley Davidson FLHTK Ultra Limited
• 2015-2016 Harley Davidson FLHTKL Ultra Limited Low
• 2008-2016 Harley Davidson FLHX Street Glide
• 2014-2016 Harley Davidson FLHXS Street Glide Special
• 2010-2010 Harley Davidson FLHXXX Street Glide Trike
• 2015-2016 Harley Davidson FLRT Freewheeler
• 2016-2017 Harley Davidson FLS Softail Slim
• 2016-2017 Harley Davidson FLSS Softail Slim S
• 2016-2017 Harley Davidson FLSTC Heritage Softail Classic
• 2016-2017 Harley Davidson FLSTF Fat Boy
• 2016-2016 Harley Davidson FLSTFB Fat Boy Lo
• 2016-2017 Harley Davidson FLSTFBS Fat Boy S
• 2008-2009 Harley Davidson FLTR Road Glide
• 2011-2012 Harley Davidson FLTRU Road Glide Ultra
• 2015-2016 Harley Davidson FLTRX Road Glide
• 2010-2013 Harley Davidson FLTRX Road Glide Custom
• 2015-2016 Harley Davidson FLTRXS Road Glide Special
• 2016-2017 Harley Davidson FXSB Breakout

Technical Documents

• 57-1122_inst.pdf