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K&N Products Custom High Flow Air Filter System- Harley Davidson Twin Cam Models ('99-'10)
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| Part Number: KN-RK-3909 |
Fits:Harley Davidson Twin Cam Models 1999-2010
The latest addition to K&N's RK Series was developed to get more horsepower from your Twin Cam® Harley-Davidson® engine. Built around the legendary K&N High-Flow Air Filter, the new RK Series assembly includes an innovative powder coated billet aluminum backplate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. RK-3909 is Now 50 State Legal On 2001-2006 Fuel Injected Models.
Important:
SEE FITMENT DETAILS!
The latest addition to K&N's RK Series was developed to get more horsepower from your Twin Cam® Harley-Davidson® engine. Built around the legendary K&N High-Flow Air Filter, the new RK Series assembly includes an innovative powder coated billet aluminum backplate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. RK-3909 is Now 50 State Legal On 2001-2006 Fuel Injected Models.
- Powder Coated Billet Aluminum Backplate Eliminates External Breathers
- Features a Built-In Dyno-Tuned Velocity Stack
- Retains Factory Air Cleaner Cover
- Includes Washable/Reusable K&N High-Flow Air Filter
- Does Not Fit Twin Cam® Engines with Magneti Marelli Fuel Injection System
- RK series air intakes are street legal in most states. Some of these parts are not legal for use on certain vehicles in California, or other states adopting California emission standards. Use our online search by part for CARB status of the part on specific vehicles.
View installation guide
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jet kits,
fuel injection,
K&N air filters,
air kits
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Write a review and share your experience.
Average Member Review:
4.00 (based on 1 review)
Would buy again: 100%
Here is the most recent member review for this accessory. See all Member reviews...
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(4 stars) reviewed on 12/19/08 by
Ariff Fin from Berakas, , Africa, for a 2006 Ultra Glide Classic Touring/Dresser wrote: Difficult to Breath? Get this without changing the look. Review Details 2 out of 4 members found this review helpful. Was this review helpful to you? Yes No |
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This accessory has not been reviewed yet. Write a review and share your experience.
Touring/Dresser
1 review
This accessory fits:
- Harley Davidson Dyna Glide- Harley Davidson Dyna Street Bob FXDB
- Harley Davidson Dyna Super Glide Custom FXDC
- Harley Davidson Dyna Wide Glide FXDWG
- Harley Davidson Dyna Switchback FLD
- Harley Davidson Dyna Super Glide FXD
- Harley Davidson Dyna Low Rider FXDL
- Harley Davidson Dyna Super Glide Sport FXDX
- Harley Davidson Dyna Super Glide Sport Touring FXDXT
- Harley Davidson Softail
- Harley Davidson Softail Deluxe FLSTN
- Harley Davidson Softail Fat Boy Lo FLSTFB
- Harley Davidson Softail Fat Boy FLSTF
- Harley Davidson Softail Rocker "C" FXCWC
- Harley Davidson Softail Standard FXST
- Harley Davidson Softail Rocker FXCW
- Harley Davidson Softail Custom FXSTC
- Harley Davidson Deuce FXSTD
- Harley Davidson Softail Springer FXSTS
- Harley Davidson Heritage Softail Classic FLSTC
- Harley Davidson Heritage FLST
- Harley Davidson Heritage Springer FLSTS
- Harley Davidson Heritage Springer Classic FLSTSC
- Harley Davidson Touring/Dresser
- Harley Davidson Road Glide FLTR
- Harley Davidson Road King Custom FLHRS
- Harley Davidson Electra Glide FLHT
- Harley Davidson Electra Glide Police FLHTPI
- Harley Davidson Road King FLHR
- Harley Davidson Road King Classic FLHRC
- Harley Davidson Street Glide FLHX
- Harley Davidson Electra Glide Classic FLHTC
- Harley Davidson Electra Glide Ultra Classic FLHTCU
- Harley Davidson Night Train FXSTB
Important Fitment Details:
Fits:Harley Davidson Twin Cam Models 1999-2010
Dyna Low Rider Convertible FXDS : 1999–2000
Dyna Low Rider EFI FXDLI : 2004–2006
Dyna Low Rider FXDL : 1999–2005, 2007
Dyna Street Bob EFI FXDBI : 2006
Dyna Street Bob FXDB : 2007
Dyna Super Glide 35th Anniversary EFI FXDI35 : 2006
Dyna Super Glide Custom EFI FXDCI : 2005–2006
Dyna Super Glide Custom FXDC : 2005, 2007
Dyna Super Glide EFI FXDI : 2004–2006
Dyna Super Glide FXD : 1999–2005, 2007
Dyna Super Glide Police FXDP : 2004
Dyna Super Glide Sport EFI FXDXI : 2004–2005
Dyna Super Glide Sport FXDX : 1999–2005
Dyna Super Glide T-Sport FXDXT : 2001–2003
Dyna Switchback FLD : 2013
Dyna Wide Glide CVO FXDWG3 : 2002
Dyna Wide Glide EFI FXDWGI : 2005–2006
Dyna Wide Glide FXDWG : 1999–2005, 2007
Softail Custom FXSTC : 2007–2010
Softail Deluxe EFI FLSTNI : 2005–2006
Softail Deluxe FLSTN : 2006–2013
Softail Deuce EFI FXSTDI : 2001–2006
Softail Deuce FXSTD : 2000–2007
Softail Fat Boy Anniversary FLSTF : 2013
Softail Fat Boy EFI FLSTFI : 2001–2006
Softail Fat Boy Firefighter FLSTF : 2010
Softail Fat Boy FLSTF : 2000–2013
Softail Fat Boy Lo Anniversary FLSTFB : 2013
Softail Fat Boy Lo FLSTFB : 2010–2013
Softail Fat Boy Peace Officer FLSTF : 2010
Softail Fat Boy Police EFI FLSTFI : 2006
Softail Fat Boy Shrine FLSTF : 2009–2010
Softail Fat Boy Shrine FLSTFI : 2005–2006
Softail Heritage Classic Anniversary FLSTC : 2013
Softail Heritage Classic EFI FLSTCI : 2001–2006
Softail Heritage Classic Firefighter FLSTC : 2010, 2013
Softail Heritage Classic FLSTC : 2000–2008, 2010–2013
Softail Heritage Classic Peace Officer FLSTC : 2010, 2013
Softail Heritage Classic Police Special EFI FLSTCI : 2006
Softail Heritage Classic Shrine EFI FLSTCI : 2005–2006
Softail Heritage Classic Shrine FLSTC : 2009–2013
Softail Heritage EFI FLSTI : 2006
Softail Heritage FLST : 2006, 2008–2009
Softail Heritage Springer Classic EFI FLSTSCI : 2005–2006
Softail Heritage Springer Classic FLSTSC : 2006–2007
Softail Heritage Springer EFI FLSTSI : 2001–2003
Softail Heritage Springer FLSTS : 2000–2003
Softail Heritage Springer FLSTSC : 2005
Softail Night Train EFI FXSTBI : 2001–2006
Softail Night Train FXSTB : 2000–2009
Softail Rocker C FXCWC : 2008–2010
Softail Rocker FXCW : 2008–2009
Softail Springer EFI FXSTSI : 2001–2006
Softail Springer FXSTS : 2000–2006
Softail Standard EFI FXSTI : 2001–2006
Softail Standard FXST : 2000–2009, 2012–2013
Touring Electra Glide Classic EFI FLHTCI : 2002–2006
Touring Electra Glide Classic FLHTC : 1999–2005, 2007
Touring Electra Glide Classic Shrine EFI FLHTCI : 2004–2005
Touring Electra Glide Police EFI FLHTPI : 2005–2006
Touring Electra Glide Police Shrine EFI FLHPEI : 2006
Touring Electra Glide Standard EFI FLHTI : 2003–2006
Touring Electra Glide Standard FLHT : 1999–2007
Touring Electra Glide Ultra Classic EFI FLHTCUI : 2002–2006
Touring Electra Glide Ultra Classic FLHTCU : 2007
Touring Electra Glide Ultra Classic Police EFI FLHTCUI : 2006
Touring Electra Glide Ultra Classic Shrine EFI FLHTCUI : 2004–2006
Touring Electra Glide Ultra Classic Side Car FLHTCUI : 2004–2005
Touring Road Glide EFI FLTRI : 2002–2006
Touring Road Glide FLTR : 1999–2001, 2006–2007
Touring Road King Classic EFI FLHRCI : 2002–2006
Touring Road King Classic FLHRC : 2007
Touring Road King Custom EFI FLHRSI : 2004–2006
Touring Road King Custom FLHRS : 2004–2007
Touring Road King EFI FLHRI : 2002–2006
Touring Road King FLHR : 1999–2005
Touring Road King Police CA EFI FLHPEI : 2005
Touring Road King Police EFI FLHPI : 2005–2006
Touring Road King Police Shrine FLHPI : 2006
Touring Road King Police Special EFI FLHPI : 2006
Touring Road King Shrine EFI FLHRI : 2004–2005
Touring Street Glide EFI FLHXI : 2006
Touring Street Glide FLHX : 2006–2007
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