DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891
Email: [email protected]

Complete Polished Finned HiFlow 587 Air Cleaner Harley Twin Cam

Availability: In stock
Item #: DK-AC587-PFN-TC
Manufacturer: DK Custom Products

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Twin Cam DK Custom Harley Davidson Outlaw Air Cleaner Systems Complete EBS High Flow M-8 Milwaukee-Eight Softail Twin Cam Dyna  Touring Trike Freewheeler  Big Twin Stage I TBW Throttle By Wire

Outlaw HiFlow 587

Air Cleaner System


Touring~Softail~Dyna Twin Cam Models

~Complete High Performance System~

 ~Fits EFI & Carbureted~

MADE in The USA!

DK Custom Products



  • HiFlow 5 7/8" Genuine K&N Air Filter
  • Low Profile - best leg clearance 
  • Support & Backplate Black Powder Coat Finish
  • Billet Aluminum Polished Finned Cover
  • Optional Matching Points Cover
  • Your Choice of External Breathers (NO dirty air in engine)
  • All Hardware needed, including Stainless AND Brass Acorn
  • E-Z Step-by-Instructions Included
  • Made in The USA!


The Outlaw HiFlow 587 System will give your Twin Cam the Air it needs to Produce Maximum Power.  CLEAN AIR - No dirty air routed back in! 

This system is TURN-KEY.  It comes with everything needed to replace the restrictive stock air cleaner.

E-Z Installation with Step-by-Step Instructions.

Genuine K&N Filter with Million Mile Warranty.

Filter is re-usable.  Simply wash, let dry, & apply oil.

Fits Carbureted & EFI Touring, Softail, & Dyna Twin Cam Models.

This is a must for at Stage 1 Upgrade.


Included: Your Choice of Brass, Black or Polished Aluminum Breathers.  Or you can choose one of the Hose & filter Breather Systems for venting - To see full details on All these choices Click HERE.  


When choosing between the 6 Breather systems, it is helpful to know-


1.  All three Breather Bolt function the same, it is just a matter of which color you prefer.


2.  All the Hose and Filter Breathers function the same with the Outlaw Air Cleaners, it is a matter of which system you like the looks of the best.

 The Transformer™ is the Ultimate External Breather System, that Doubles as a Support Bracket and can be Transformed into an EPA (Emissions) Compliant System. It fits all Outlaw Air Cleaners.

This System comes with a Billet Aluminum Polished Finned Cover, and there is an Optional Matching Points Cover, see pics of it HERE.

These are also available with a variety of other covers, including Black & Contrast Cut.

You can upgrade to the Outlaw HiFlow 587 Air Cleaner System without doing any dyno work or adding tuners IF you leave the stock exhaust in place.

This kit comes with both a Stainless and a Brass Acorn Fastener for the Cover. 

There are Optional A/C Cover Fasteners that you can add to your order. 



2000-2015 Softail (cable operated throttle)

2016-UP Softail (Throttle by Wire TBW)

1999-UP Dyna (cable operated throttle)

2000-2007 Touring (cable operated throttle)

2008-UP Touring (Throttle by Wire TBW)

If you have a 2008-UP Touring Model, or a 2016-UP Softail, it has Throttle by Wire (TBW) and you must check the TBW option below to get the correct backplate.

 If you have a 08-Up Touring Model and would like to hide the Ugly TBW Servo Motor CLICK HERE for a selection of Servo Covers.


The EPA has required Harley to route dirty, oily crankcase air back into the air cleaner compromising the performance of your engine. The Outlaw Breathers vents it without compromising the performance or longevity of your motor.

Caution:  Motorcycles modified with this DK Custom Products High-Performance part may not be legal for public highway use in some areas.  The user shall determine suitability of this product for his or her use.


"Thank you for a great quality, top performing Air Cleaner!"  -Kyle

Customer Reviews

Great Product and FAST shipping Review by TBone
Quality product and simple installation. I didn't think I would be able to tell a difference from stock, but I was wrong! I swear i can feel the air whooshing past my legs going into the carb! Best upgrade by far!! So glad to get rid of that little stock hot box. Saving up for more upgrades from DK! (Posted on 2/3/2023)
Highly recommended Review by Schmikie
Air cleaner performed extremely well and is made of high quality materials and craftsmanship. Very easy installation (Posted on 12/10/2020)
Highly recommended Review by Schmikie
Air cleaner performed extremely well and is made of high quality materials and craftsmanship. Very easy installation (Posted on 12/10/2020)
Worked like a charm Review by RDinGA
This gave me the ability to replace my huge oval shaped OEM air cleaner with a more streamlined product. It installed VERY easily with the supplied bracket. It also gave me the ability to get my knees in a bit closer to provide a modicum of rider comfort for an old Sportster rider that bought a Tri Glide. (Posted on 8/29/2019)

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