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K&N BM-1204 5.0 out of 5 stars 8 Customer Reviews
Replacement Filters > Replacement Air Filter

List Price: $69.47
Your Price: USD $54.99

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BM-1204
 
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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 K&N 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®

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.32 oz (9 ml)
Height1.25 in (32 mm)
Outside Length5.875 in (149 mm)
Outside Width3.5 in (89 mm)
Package Contents1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity1
Product Box Height7.25 in (184 mm)
Product Box Length4.63 in (117 mm)
Product Box Width4.63 in (117 mm)
Product StylePanel Air Filter
Weight1.6 lb (0.7 kg)


Product Reviews


  Fits perfect as all K&N products do.
Walter Sarzynski Alabama
  I finally got around to installing my new K & N air filter into my 2007 BMW R1200RT. The bike had the OEM BMW filter. I immediately noticed improved torque just off idle up to about 2,500rpm, especially if the bike was in 2nd gear just above idle. The engine used to struggle and want to be shifted into 1st, now I just crank the throttle and go! Well worth the cost for a one time purchase.  Installation was easy as well.
Denny Pink Fort Collins, Colorado
  I´ve changed the filters of my motorcycle to K&N. This is an excellent product. Service and support are great.
Jose Cali, Colombia
  Haven't got to use the new filter yet. I have had experience with the K&N products when I owned a R1150RT, both air filter & oil filters. Getting the best protection on the market is important to insure the bike runs great in all kind of conditions.
Mark Reed Indianapolis, Indiana
  I have used K&N filters on my bikes for the last 20 years. I've considered the filters the best protection for the engines. The best available on the market. As an added benefit when used with an after market exhaust system an increase in proformance and fuel mileage is realized. Installation is a snap and cleaning and re-oiling couldn't be easyer. As I have been turning wrenches for over 40 years and do my own maint. this is the only filter I will run in my bike and 4 wheel vehicles.
Rick Holbert Baton Rouge, Louisianna
  Have used K&N filters for years. Same quality materials in the bike filters as automobile filters. As I ride at altitude in the mountains and harsh environments, I have confidence that not only will my engine be performing at maximum I will also be protecting my engine for a long life. I get better mileage too.
Drew Friedrichs Wyoming
  I now have K&N filters on all of my vehicles. What more can I say.
Jim Romo California