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Replacement Filters > Replacement Air Filter

 List Price: $60.81
Your Price: $40.99

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E-2540
 
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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
E-2540 Cross Reference
Installation Instruction Sheet
E-2540 Vehicle Applications


Part E-2540 Product Specifications
Product Style: Round Air Filter
Height: 2.188 in (56 mm)
Inner Wire: No
Inside Diameter: 5.188 in (132 mm)
Outside Diameter: 7 in (178 mm)
Top Style: Open
Top Material/Finish: None
Air Filter Shape: Round
Filter Material: Cotton Gauze
Flanges: None
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.6 oz (18 ml)
Weight: 0.99 lb (0.45 kg)
Product Box Length: 8.5 in (216 mm)
Product Box Width: 3.63 in (92 mm)
Product Box Height: 8.63 in (219 mm)



Customer Feedback      Be the first to review part E-2540

I read in a few forums that some folks have had fitment issues with this product. I installed this on a base model 2012 Triumph Bonneville, and it seemed to have fit fine, although I can only speak for this trim specifically. So far the filter seems to be working okay, but I have a hard time feeling a noticeable difference in power, but I don't go to WOT too often where a change like an air filter would be most noticeable. Since my company's only motorcycle dynamometer is in 130 rusting pieces in a parking lot, if anyone out there has any dyno results with both the [brand] and the stock air filter, I would love to see them. As far as dealing with K&N goes - I am perfectly happy. The product did what it said it would do, it shipped on time, and arrived in the mail quickly.
Peter, San Antonio, Texas
Installed on a Fiat 500S 1.2. Installation was all pretty straight forward, the only slight problem I had was with the following instruction: Fit the supplied rubber cap to the vacuum pipe on the inlet manifold. (Fig. 9) The inside of the rubber cap just wouldn't fit over the vacuum pipe. Plus when you compare the internal diameter of the vacuum hose (which is originally fitted onto the vacuum pipe) to the rubber cap, the rubber cap is much smaller and I just couldn't get it over. In the end I just reattached the vacuum pipe and stuck the rubber cap down the end backward and then hid the pipe! So in the end it all worked out just fine. I have quite small hands and trying to get the rubber cap over the end of the inlet manifold was difficult for me, so god knows what ham fisted people do. Anyway.... the kit makes the car sound really nice and performance has slightly improved.
Jonathan Whitehead, Whitby, England
Site is very easy to navigate and steps to order flow quickly and simply. This is the third K&N filter I have ordered and like the rest it arrived before I expected and was in perfect new shape. I installed this one on the 2007 Honda S2000 and have not taken any measurements yet, but it does seem to have improved low rpm performance. The other 2 on are my '71 Fiat 124 Spider (Dual Webers) and 2012 Infinity M37. I generally keep our main car for 5 to 7 years, and sport cars for 10 to 15 (except Fiat which I have had since 1977). So lifetime filters are the only way for me to go even if there was no performance improvement.
Ted Allen, Redlands, California