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MSRP $87.99 35.2% Off
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K&N E-1250 Air Filter

Replacement Filters > Replacement Air Filter
  • 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®
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 the majority of vehicles 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]

Product Specifications

Air Filter ShapeRound
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.57 oz (46 ml)
Height3.5 in (89 mm)
Inner WireNo
Inside Diameter9.25 in (235 mm)
Outside Diameter11 in (279 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height3.63 in (92 mm)
Product Box Length12.25 in (311 mm)
Product Box Width12.25 in (311 mm)
Product StyleRound Air Filter
Top Material/FinishNone
Top StyleOpen
Weight1.7 lb (0.8 kg)

Customer Feedback

New Polo 6R reg. 6-14-13, 1.6L CRD 90 DIN HP
Stock filter 180 kmh 2,000km
K&N E-2997 190 kmh!!!, after break in at 12,500 km tried to speed again: 200kmh, and Polo wanted more...
Easy driving 120 average 4.5 to 5L/100km, pretty good I think! With the stock 45 Liter Diesel nearly a range
of 1,000! Really nice!!
Thank you K&N for the excellent product you've been producing for nearly 50 years! I started 1969 with my Dodge PowerWagon 360ci, then my Dodge Motorhome, then the Dodge PU 360ci 4x4, then a Jeep Pick Up 4x4. Back home in Germany the line of company cars started with a Passat 1300cc gasoline, later followed by two Passat Diesels, both driven more than 345,000 and 330,000 in 5years: no problems, ONE FILTER per car, no trouble with the turbos, either!! (Thanks to the 2/3 less intake pressure caused by K&N filters) Another happy MMC (million mile customer)!
p.s.: the story continues: my son in SoCal VW GTI K&N intake system: he smiles every time he turns the key to start!

Sven T. Emmermann
Thanks for putting out a great product. I own an 87' Dodge Ramcharger 4x4 318 with some mild engine work done to it, and a 4-bbl carb. I put an open element air filter housing on it, and while it let the carb breath a little easier, I was going through way too many paper element filters. This problem has always been way worse in the summer when I drive on dirt logging roads. Even when the paper filters were new, there was always a slight stumble and bog when taking off. I put the K&N on it and the stumble is gone. I can even notice a decent power increase through mid range. Although the K&N cost more, it'll have paid itself off by the end of summer. Thanks again, money well spent.

Prince George, B.C., Canada
Absolutely outstanding!
I am just writing to let you guys know just how pleased I am with your products. I have a 1988 4x4 Chevy 3/4 ton suburban. It's needed some "tlc" for a long time from the original owners (my mom and dad) and while I was at it decided to put in a billet grille, brand new interior, but more importantly to you-the engine as well. Everywhere I looked for more airflow, only one name came up-K&N filters. I bought one to match up with the new parts for my engine, but I won't do the work for another few weeks. I just couldn't resist trying your filter in the mostly stock Chevy 350 tbi engine I have in it now. WOW!!!!! Not only did a 5 minute change of air filters result in absolutely incredible performance (easily 10 hp gain, if not more), but the engine runs more smoothly now than 14 years ago when the truck was brand new! Better passing power, smoother engine, and the gas mileage has gone from 7 1/2 miles per gallon to a whopping 10 mpg (outstanding considering the percentage!). All this living in an area that's at 6200 feet and with mountain peaks traveled daily to and from work at nearly 8500 feet. With the savings in gas money, the $45 I spent for the filter will repay itself in 4 trips to the gas station and just save me money from there out! I love this filter so much that I have also put one in my 1993 Dodge Ramcharger with a magnum 360 engine, my sister took my advice and put one in a 4.0 liter Ford Ranger, and when I finally buy my Corvette in another few months, it will be K&N powered as well!!

A little long-winded way of just saying "keep up the good work!"

Courtney D. Smith, Absolutely satisfied and amazed customer
South Lake Tahoe, California