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Replacement Filters > Replacement Air Filter

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33-2142
 
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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 virtually every vehicle 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.[MORE]
Available Information
33-2142 Cross Reference
Installation Instruction Sheet
News Story - BMW M5 Products for High Performance and Instant Power
33-2142 Vehicle Applications


Part 33-2142 Product Specifications
Product Style: Panel Air Filter
Height: 1.188 in (30 mm)
Outside Length: 9.938 in (252 mm)
Outside Width: 8.25 in (210 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.3 oz (38 ml)
Inner Wire: No
Top Style: Open
Weight: 1.3 lb (0.6 kg)
Product Box Length: 10.44 in (265 mm)
Product Box Width: 1.75 in (44 mm)
Product Box Height: 11.56 in (294 mm)



Accessories
99-5050.jpg
99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part 33-2142

K&N, again you prove that my trust in your products is never in vain, I use in my cars and recommend K&N to all my friends and family, it all started with my Fiat 128 when I got it the custom open style filter (RA-071V) and it transformed its little 1.1 liter engine performance entirely, and since then I've installed drop-in filters in my uncle's 2008 Toyota corolla 1.6, my friends' 1999 Daewoo lanos 1.5, 2003 Subaru Legacy 2.0, and finally in my BMW 1991 535i, and it made the car a monster without the growling noise of a cold air intake system and definitely helped ALOT my gas mileage on the thirsty 3.5 engine .
Keep up the good work and I'll keep up recommending your products to everyone I know :)
Mahmoud Maged, Cairo, Egypt
Having used k&N panel filters for a number of years on Vauxhalls and BMWs I cannot for the life of me see why these filters don't come as standard!!!
My current BMW 535i SE automatic now drives smooth as a nut between the gears and doesn't hunt anymore as well as feeling the throttle response being there for you instead of having to work it. Many thanks for a great product !!!
Stephen Wilson, Tyne & Wear
England
Update on my July 15, 2003 submission to K & N on my results

To Whom IT May Concern,
I must say that I am very impressed with your product. When I installed part number 33-2277 on my 2003 Honda Accord EX V6, I initially tested its performance on a closed track. Well after some additional testing recently, something interesting was discovered. On a certified Dyno machine, the stock wheel horse power and torque increased from 204.5 hp and 180.7 ft/lbs to 216.3 hp and 191.4 ft/lbs! The flywheel horse power rating at 240 hp is likely 250 hp using the standard calculations. What was most interesting is how the power curve changed. The engine developed a flatter torque curve with a peak at 4,750 rpm as opposed to the 5,000 rpm stock reading. The same results followed with the horse power delivery. I don't believe hype, so the math results tell the story. After using this product for 90 days, I re-tested the performance results at the same track, and here is what happened:

0-60 7.0 seconds stock

0-60 6.87 seconds K & N installed July 2003

0-60 6.63 seconds K & N after 90 days


1/4 mile 15.5 seconds @ 92 mph stock

1/4 mile 15.1 seconds @ 94.2 mph K & N installed July 2003

1/4 mile 14.8 seconds @ 97.8 mph K & N after 90 days


Top Speed (certified with a calibrated and properly operated radar gun)

138 mph stock

143 mph K & N installed July 2003

146 mph K & N after 90 days


Gas Mileage (measured with the on-board Honda Navigation and mileage calculators)

25.0 mpg city, 31.0 mpg highway stock

26.0 mpg city, 33.5 mpg highway K & N installed July 2003

26.4 mpg city, 33.7 mpg highway K & N after 90 days

Note: When the testing was being completed, the gas mileage for that day was 17.2 mpg. Obviously, this type of driving was not usual and customary, and thus was not included in the overall gas mileage calculations.

Additional testing was conducted and across the board increases in performance in 5-60, 20-40, 30-50, and 0-100 mph tests were very apparent. I have discussed my findings with some Honda experts and they say that part of the results should be credited to the on board computers for the car. They say that engine computers have likely remapped the fuel/air mixtures to take advantage of the new levels of air available in the intake as a result of the use of your product. This makes sense to me. My neighbor installed a K & N filter in his BMW M5 and ZO6 Corvette and saw similar performance increases. I hope that anyone who reads this testimonial understands that these results are facts, that should be easily repeatable with other vehicles.
David, Chappaqua, New York

K&N 33-2142 fits the following:
2004 BMW M5 5.0L V8 F/I - All (2 required)
2004 BMW 540I 4.4L V8 F/I - All
2003 BMW M5 5.0L V8 F/I - All (2 required)
2003 BMW 540I 4.4L V8 F/I - All
2003 BMW 535I 3.5L L6 F/I - All
2002 BMW M5 5.0L V8 F/I - All (2 required)
2002 BMW 540I 4.4L V8 F/I - All
2002 BMW 535I 3.5L L6 F/I - All
2001 BMW M5 5.0L V8 F/I - All (2 required)
2001 BMW 740IL 4.4L V8 F/I - US
2001 BMW 740I 4.4L V8 F/I - US
2001 BMW 540I 4.4L V8 F/I - All
2001 BMW 535I 3.5L L6 F/I - All
2000 BMW M5 5.0L V8 F/I - All (2 required)
2000 BMW 740IL 4.4L V8 F/I - US
2000 BMW 740I 4.4L V8 F/I - US
2000 BMW 540I 4.4L V8 F/I - All
2000 BMW 535I 3.5L L6 F/I - All
1999 BMW M5 5.0L V8 F/I - All (2 required)
1999 BMW 740IL 4.4L V8 F/I - US
1999 BMW 740I 4.4L V8 F/I - US
1999 BMW 540I 4.4L V8 F/I - All
1999 BMW 535I 3.5L L6 F/I - All
1998 BMW M5 5.0L V8 F/I - All (2 required)
1998 BMW 540I 4.4L V8 F/I - All
1998 BMW 535I 3.5L L6 F/I - All
1997 BMW 540I 4.4L V8 F/I - All
1997 BMW 535I 3.5L L6 F/I - All
1996 BMW 540I 4.4L V8 F/I - All
1996 BMW 535I 3.5L L6 F/I - All