Reviewed By carlos r (Bound Brook, NJ) Reviewed for a 2000 Audi S4 —6/14/2007 5:43 PM
defenetly felt the difference, it adds a litle bit of power
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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.