K&N Air Filters for the Buick GS 400
Buick GS 400 Replacement Air Filters
Buy now from K&N's Online Store and get a 100% money back guarantee on any Buick air filter!
- Designed to Increase Horsepower and Acceleration
- High Air Flow with Excellent Filtration
- K&N Million Mile Limited Warranty®
Buy a K&N air filter. Help your Buick GS 400 run better.
Upgrade your Buick GS 400 today with a K&N air filter
. K&N automotive replacement air filters can help your car or truck run better.