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K&N 33-2141-1 Be the first to review!
Replacement Filters > Replacement Air Filter

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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 Information on Replacement Air Filters]
  • 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®
Available Information
33-2141-1 Cross Reference
Installation Instruction Sheet
33-2141-1 Vehicle Applications
Air Filter Test Data
News Story - Simple Power and Protection Additions for the Chevy Impala
News Story - Simple Pontiac Grand Prix Performance Additions
News Story - Chevrolet Monte Carlo Products for Performance and Protection

Part 33-2141-1 Product Specifications
Product Style: Panel Air Filter
Height: 0.938 in (24 mm)
Outside Length: 10.5 in (267 mm)
Outside Width: 7.875 in (200 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.33 oz (39 ml)
Weight: 0.86 lb (0.39 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)

Customer Feedback      Be the first to review part 33-2141-1

Wy wife's car is a 2005 Cevy Impala, 3400 with 82000 miles. We make the same trip to Kentucky three to five times a year . We bought it from our credit union as a repo and I just recently decided to change over her car to K&N. I have a Chevy 1500 350+ with this filter arrangement and I don't know why I waited so long to change the car. When we bought it it had 58000 miles, so we have made lots of trips. From where we live we fill up at BP and it is 437 miles to where we get off the interstate in Kentucky. Usually the low fuel lite comes on at about 386 miles. This time. 430 miles. You can compute this yourself, but it took 13 gals. of fuel. 33.3, from 28! Coming home was a little better, we had a tail wind. I am overjoyed with the performance. I always use BP gas and the filter is the only thing I changed! I have had remote starts on my cars and trucks for the last 18 years and I wouldn't have one without. I will never have another car or truck without a K&N filter.Thanks for the wounderfull product. Overjoyed In Illinois!
William Fredericks, Streator, Illinois
One word, Wow. I put the K&N air filter in my '02 Bonneville (supercharged) and man what a difference. Being 19 and having a led foot, I really have noticed and increase in power. When I do get on the gas the supercharger sounds amazing. Even with the crazy driving my MPG went from 14.1 to 16.2. What a difference! I just love this filter. Great job guys.
Austin , Atlanta, Georgia
I installed your filters in my 2002 Bonneville and my girlfriend's 2002 Intrepid noticeable gas mileage and performance. She no longer has the Intrepid. She has a 2009 Sonata with the 3.3 v6. I will install one soon. Great product, keep up the great work and I'm a customer for life.
Kevin Washington, Washington D.C.