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Filter Wraps > Air Filter Foam Wrap

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25-1691
 
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The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N Filtercharger when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre-cleaners air oiled with K&N air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre-cleaners do not use oil. They have smaller foam cells. [MORE]
Available Information
Installation Instruction Sheet
25-1691 Vehicle Applications


Part 25-1691 Product Specifications
Product Style: Filter Wrap - Oval Straight
Wrap Type: Airforce Pre-Cleaner
Color: Red
Material Used: Foam
Inside Width: 4.25 in (108 mm)
Inside Length: 5.5 in (140 mm)
Height: 2 in (51 mm)
Closed Top: Yes
Package Contents: 1 Airforce Pre-Cleaner Wrap
Package Quantity: 1
Air Filter Shape: Oval
Weight: 0.01 lb (0 kg)
Product Box Length: 8.5 in (216 mm)
Product Box Width: 2.75 in (70 mm)
Product Box Height: 10.5 in (267 mm)



Customer Feedback      Be the first to review part 25-1691

I installed my first K&N filter in 1975 while I was the manager at Small Car Accessories, a high performance VW shop in Sunnyvale CA. At the time I ran these filters on both of my Corvair powered VW's, a '58 Single Cab pickup, which I still drive, and a '71 bug. They worked really well on the street, giving me an extra mile or two per gallon with pretty much 'filter-less' performance, and worked especially well in the shop's sand rail. Other filters would pack it in when running the dunes at Pismo and until the K&N's came along, you carried a couple of extra filters. The K&N's not only kept the sand out, but did well when packed with sand. A quick stop and a quick tap or two and they were ready to go again. Because they flowed air so well and were so easy to clean. We sold a lot of them to our off-roading customers, and they loved them. At the time, RURA racers ran their buggies and Bajas at a track near the old Fremont Drag Strip where they used them for their performance value and reusability. These days I run a K&N filter in my '99 Ranger, where I picked up just over 1 mpg with just the filter change. I still use a K&N in my old Single Cab, which since 1981 has sported a 351 Ford Windsor engine and Ford drive train (over 60,000 miles). My '82 Yamaha 650 Seca still has the K&N air filter I installed at the first filter change over 52,000 miles back. There is also a K&N on my Café style Iron Head Sporty (48,000 miles), my wife's modified 750 Virago (two pod style filters), my '05 Triumph Tiger (added three HP on the dyno) and the '97 GS500 Suzuki I recently saved from the back of a neighbor's yard. I'm taking the time to write this because the K&N filter is a product which is truly as excellent as the manufacture claims. Besides the maximum star rating I also give K&N filter a 'two thumbs up.'
Kim Crumb, Forestville, California
Lisa Kubo was awesome! She answered my questions thoroughly and got me what I needed in record time. Totally satisfied with my new air intake filter for my Suzuki GSX-R1000. Thank you K&N!
Pete, Yucca Valley, California
Finally a filter for my Suzuki Boulevard C50 Limited. Instructions were spot on, except (as indicated in other reviews) make sure you remove the snorkel from the OEM filter. The instructions don't mention this but you need to in order to complete the seal. Great job KN and thanks for making this one!
Ronald Chapman, Maryland

K&N 25-1691 fits the following:
2004 SUZUKI LT160 QUADSPORT 160 - All
2003 SUZUKI LT160 QUADRUNNER 160 - All
2001 SUZUKI LTF160 QUADRUNNER 160 - All
2000 SUZUKI LTF160 QUADRUNNER 160 - All
1999 SUZUKI LTF160 QUADRUNNER 160 - All
1998 SUZUKI LTF160 QUADRUNNER 160 - All
1997 SUZUKI LTF160 QUADRUNNER 160 - All
1996 SUZUKI LTF160 QUADRUNNER 160 - All
1995 SUZUKI LTF160 QUADRUNNER 160 - All
1994 SUZUKI LTF160 QUADRUNNER 160 - All
1993 SUZUKI LTF160 QUADRUNNER 160 - All
1992 SUZUKI LTF160 QUADRUNNER 160 - All
1992 SUZUKI LT160E QUADRUNNER 160 - All
1991 SUZUKI LTF160 QUADRUNNER 160 - All
1991 SUZUKI LT160E QUADRUNNER 160 - All
1990 SUZUKI LT160E QUADRUNNER 160 - All
1989 SUZUKI LT160E QUADRUNNER 160 - All