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E-0661
$53.99 USD
MSRP $84.29 35.9% Off
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K&N E-0661 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   6 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N E-0661 Air Filter fits some Mercedes-Benz A45, Mercedes-Benz A45 AMG, Mercedes-Benz CLA45 AMG, and Mercedes-Benz GLA45 AMG models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

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Product Specifications

Filter MaterialCotton Gauze
Height6.75 in (171 mm)
Inner WireNo
Inside Diameter3.063 in (78 mm)
Outside Diameter5.625 in (143 mm)
Top StyleRubber
Top MaterialNone
Air Filter ShapeRound Straight
Flanges1
Package Contents1 Air Filter
Package Quantity1
Product StyleRound Air Filter
Weight1.4 lb (0.6 kg)
Filter Re-Oiling Amount1.5 oz (44 ml)
Product Box Height7.75 in (197 mm)
Product Box Length6.81 in (173 mm)
Product Box Width6.81 in (173 mm)

K&N E-0661 Air Filter Product Reviews

Wednesday, September 20, 2017 - Part E-0661
Got my E-0661 Air filter for my Mercedes CLA 45 AMG -2017 a couple of weeks ago. Very quick delivery to Stockholm Sweden, only 4 days from placing order. Excellent fit as always with K&N products. Got a bit better throttle respons at low rpms, a bit louder intake sound when turbo is spooling (but hard to tell when driving since the car already is loud with AMG performance exhaust etc). All in all, great product, great delivery, and I'm happy!

Dan
Stockholm, Sweden
Monday, April 24, 2017 - Part E-0661
I bought this for my 2017 CLA 45 AMG and it fits perfectly, just like the stock one. I do not know about power gains but it does sounds a bit angrier when I hit the gas. I do wish that K&N would make a true intake with a tube adapter from the factory box to the turbo.

Soua Vang
Florence, United States
Tuesday, March 7, 2017 - Part E-0661
Fittment is perfect. Indeed Sound inprovement. But is modest. Also because the Cla45 has à cold airbox from the factory. I noticed à little difference in throttle respons in the lower revs. Positive. I bet with a Race kat in the exhaust and à smoother complete exhaust syste, this filter wil get its real bennefits. Sound on low speed when you release your throttle is the greatest differencke. You can hear that the turbo trows back some pressure. I also noticed that its flows better because first few rides the engine needed to ajust itself. Stotter, holding back when you put down the throttle. Very little. But it did. After 2 à 3 rides. Everything perfect.

Sebastiaan Bechthold
Steenbergen, Netherlands