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2011 Audi A4 Gas Saving Products

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Latest Customer Reviews

K&N Air Filters Reviews


Top of the line quality air filter

Reviewed By Son L (poway, CA) Reviewed for a 2011 Audi A4 —12/17/2014 8:28 AM

I always use K&N in my cars. For performance cars I went straight for full kit. For family or others I use replacement drop-in filter with little modified for more incoming air.

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K&N 69 Series Typhoon Intake Systems Reviews


No Complaints. It's just as described.

Reviewed By mark w (Staley, NC) Reviewed for a 2011 Audi A4 —11/25/2014 9:55 AM

It was pretty easy to install. I just took my time and did it in the driveway. There was enough assembly to let me feel like I was doing more than plugging something in, but not so much that I had to buy special tools or consult youtube videos. I can hear a difference when I accelerate. The sound is somewhat of a hiss and not a deep growl like we hear when we install one of these on a V8 for instance. I like it though. I notice additional speed and power, but it's not real theatrical. I just look at the speedo and am surprised that it reads 80 already...that kind of thing.

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Borla Exhaust Systems Reviews


decent system...not quite perfect

Reviewed By CHRISTOPHER K (BROOKFIELD, WI) Reviewed for a 2011 Audi A4 —2/15/2014 10:40 AM

Had my regular shop install three weeks ago. Sound very nice at mid range to high RPMs. When cruising the sound is not as sweet, kind of a low buzzy noise from 1600 to 2000 RPM. The overall tone is great and not too loud. May have the borla resonator replaced with a longer one to decrease the low buzz. The biggest issue was the install. The shop stated the existing hardware was very difficult to make work with the new system and had to get new stainless clamps to make it all work nicely.

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