K&N Racing Air Filter - Arctic Cat Cat 400 FIS 4WD Automatic / 400 3in1 ('06-'08) / 400 EURO ('08-'10) / 500 TRV ('05-'06) - K&N

Racing air filter K&N for Arctic Cat Cat 400 FIS 4WD Automatic / 400 3in1 Automatic (2006-2008) / 400 EURO Automatic (2008-2010) / 500 TRV Automatic (2005-2006) / 500 FIS Automatic (2006-2008) / 500 TRV EFT Automatic (2009) / 650 3in1 H1 (2006-2010) / 650 H1 / 650 TRV EFT H1 (2008-2010) / 650 XT H1 (2005-2010).

K&N air filters easily replace standard air filters without any modifications to the air filter housing or alterations to carburetor settings. Due to optimized airflow, using this filter will lead to better air intake and an increase in power output.

Specifications:
- does not alter exhaust parameters (emission regulations are met)
- unique filter texture, along with K&N filter oil, protects the engine from fine particles
- fully washable, K&N filters come with a lifetime warranty
- works with electronic fuel injection systems without requiring modifications.