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Replacement Filters > Replacement Air Filter

 List Price: $66.14
Your Price: $51.99

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BU-1108
 
Not in stock.
 Will ship as soon as it becomes available.

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
BU-1108 Cross Reference
BU-1108 Vehicle Applications
Air Filter Test Data
News Story - Add Performance to Buell 1125R and 1125CR Motorcycles with K&N Air Filter


Part BU-1108 Product Specifications
Product Style: Panel Air Filter
Height: 0.75 in (19 mm)
Outside Length: 11.625 in (295 mm)
Outside Width: 7.375 in (187 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.67 oz (20 ml)
Weight: 0.89 lb (0.4 kg)
Product Box Length: 7.72 in (196 mm)
Product Box Width: 1.75 in (44 mm)
Product Box Height: 13.56 in (345 mm)



Customer Feedback      Be the first to review part BU-1108

I have not gotten my filter yet, but I wanted to acknowledge that K&N did a great job getting a product out for my motorcycle. I ride a '08 Buell 1125R. Lisa Watson and the whole K&N crew did an awesome job coordinating with some Buell 1125 owners to get this product developed and out on the street. I, as a customer who has purchased approximately 20 K&N filters, am glad that your company does not forget about the lower production number vehicles. I put K&N filters on all of my vehicles and although I have not gotten the one for my Bike yet, I know that it will perform up to, or beyond my expectations, just as every K&N filter I have ever purchased has performed. Thanks, again for making this filter for my Bike and for the awesome service to your customers.

Best Regards,

Mike Milian
Naval Science Professor
State University New York Maritime College
,
Dear K&N,

Recently, I purchased a new Kawasaki ZX-10R. As usual for any vehicle, I also purchased the suitable K&N filter. However, instead of immediately installing it, I left it on the shelf and more-or-less forgot about it.

Now, the bike has approximately 2900 miles on it and it is suffering from lower than expected power output and piston blowby. I attribute this to the paper air filter that came in the bike.

I believe the problem is, as the paper filter initially blocks the entry of dirt into the engine, the combination of vacuum acting on the filter, vibration from the motorcycle's engine and the lack of a chemical adhesive (filter oil) allow dirt particles to eventually pass through the filter.

At this time, I sent the bike to the dealer for compression testing to verify the reduced performance.

When I get the bike back, the first thing I'm going to do is to install the K&N filter.

BTW, my other motorcycle, a Buell 1125R, is running perfect after 5K miles as I installed a K&N filter immediately after purchasing it.
Brian Crawford, Spring, Texas
Awesome product.  My Buell is a different bike!
Mike Nofi, Rohnert Park, California