Arlen Ness Inverted Series 10 Gauge Air Cleaner - 18-943 For Harley Motorcycles 1999-2017 Swing Arms Lighter feel in steering by

Lighter feel in steering by shorter trail in front end

2010-2012 Harley-Davidson Softail Standard FXSTI 2002-2003

Lowrider ST

Also consider heavy-duty if the majority of your riding is 2-up with a passenger and/or gear

Arlen Ness Inverted Series 10 Gauge Air Cleaner - 18-943 For Harley Motorcycles 1999-2017 Swing Arms Lighter feel in steering byFeatures Forged billet aluminum backing plate features Big Sucker hidden breather technology and a radius air inlet for smooth airflow Forged billet air filter covers feature exposed design and a CNC inverted top that acts as a velocity stack to help pull in more air flow Hidden breathers are O ringed at the heads and exits at throttle body carb to create a virtually closed loop system Performance filters features a black synthetic filter element