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2001 Audi S4 Air Filters - Custom Fit

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Latest Customer Reviews

K&N Air Filters Reviews


K&N vs OEM/stock

Reviewed By Scott W (Indianapolis, IN) Reviewed for a 2001 Audi S4 —8/25/2006 4:50 AM

I purchased a K&N air filter for my 2001 Audi S4 recently, and there's a slightly noticeable increase in horsepower. Quick shipping from the distributor. Highly recommended.

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aFe Pro-Dry S Air Filters Reviews


Good Product

Reviewed By Anthony D (SAN LEANDRO, CA) Reviewed for a 2013 Audi S4 —6/3/2014 8:52 AM

Just installed this air filter and it looks great. Slight increase in power. Still waiting to crunch the numbers on fuel economy. I definitely prefer this filter to one you have to re-oil. Overall I'm happy with my purchase.

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Mahle Air Filter Reviews


air filter for acura RLX

Reviewed By larry l (mansfield, TX) Reviewed for a 2014 Acura RLX —2/23/2017 9:56 AM

not an easy item to find. When you find it then there are shipping costs to take into consideration. The Mahle filter was great and no shpg. costs sealed the deal.

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