20% Off
Enter this K&N promo code to receive 20% off on motor oil with purchase an Oil Filter and 2 or more Motor Oil (gallon or quart).
K&N Featured Coupons
These coupons and coupon codes have received the highest click engagements by K&N users.
15% Off
Paste this K&N promo code to receive 15% off the Exhaust Kit with purchase an Intake Kit and an Exhaust system together.
10% Off
Receive 10% off Wiper Blades, Oil Filter, Motor Oil, and an Air Filter cleaning kit together when you copy this K&N coupon code.
Most popular offers this week
$10 Off
Receive $10 off the cleaning kit with purchase of an Air Filter and an Air Filter cleaning kit together when you copy this K&N promo code.
20% Off
Apply this K&N promo code to get 20% off Air Filter Wrap with purchase of Air Intake System.
$50 Off
Receive $50 off selected Air Intakes when you paste this K&N promo code.
$10 Off
Activate this K&N promo code and order Home Air Filter & a Home Air Filter cleaning kit (99-6010) together and receive $10 off the cleaning kit.
$10 Off
Activate this K&N promo code and purchase Cabin Air Filter & Cabin Air Filter cleaning kit (99-6000) together and receive $10 off the cleaning kit.
Free Shipping
Apply this K&N promo to enjoy Free Shipping on all orders over $25.
Up To35% Off
Get up to 35% off Air Filters & Performance Parts when you use this K&N coupon.
$5 Off
Receive $5 off Home Air Filters when you apply this K&N coupon.