2011 Buick Regal Engine Air Filters

Genuine GM engine air filters for the 2011 Buick Regal, at wholesale prices. Factory air filters seal to the housing correctly, which is what keeps unfiltered air out of the intake tract. Epsilon II from 2011 to 2017 and the E2XX Sportback and TourX from 2018 to 2020.

When to replace

Reduced throttle response or a mass airflow code after a cheap filter. On a mid-size car, trim level changes brake sizing, suspension and cooling parts within one model year.

The case for genuine GM

• Central shipping origin. Dallas keeps engine air filters transit times short nationwide.
• Backed after the sale. If your engine air filters does not work out, we make it right.
• Factory warranty. Genuine engine air filters carry GM coverage aftermarket cannot match.

Avoiding the wrong part

GM revises parts mid-production. The OEM catalog tracks those revisions; cross-reference tables usually do not. Send us your VIN and we will confirm the exact part number before you order. Orders in by 3pm Central usually go out the same day, with shipping calculated at real cost.