DK Custom Products

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

Black Bobber Style Complete HiFlow 587 Air Cleaner Twin Cam

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

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Black Bobber Style Complete HiFlow 587 Air Cleaner 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
  • Black Bobber Style Cover - Size:  7 7/8" Diameter & 2 1/8" deep
  • 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 - The Traditional, the Discrete, or the Premium Discrete  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 three of 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 Black Bobber Style Cover.

We also have Systems with your Choice of Mirrored or Black Powder Designs, other Bobber Styles, and Black & Polished Diamond Plate.

Our line of stand-alone Emblems can be used to switch the look as often as you like.

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 below. 

44 Magnum, The Gripper, Tri-Speed, Speed, Tri-Shield and Mini-Tri-Shield.  Any of these will add to Your Bikes Unique Look. 



2000-2015 Softail (cable operated throttle)

2016-UP Softail (Throttle byWire TBW)

2000-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.

Dyno Proven Increase of 8-12 Horse Power.

"I dig your air cleaners cause it's such a great platform to personalize your bike." -Bart

Customer Reviews

Excellent product Review by Daniel
So I ordered and installed one of these air cleaners on my 14 King. It looks absolutely amazing, it’s quality is far superior for the price point that these guys are selling at. I haven’t been disappointed with DK in any way, they ship extremely fast, they sell quality products, and the stuff just works. The design that they use in my opinion is straight forward, easy and just works. I added the external breather bolts, and they are quality as well. It looks awesome, works excellent, and installation was quick. You don’t need a 500 dollar plus air cleaner to make your Twin Cam breathe better, you need a DK plain and simple. You won’t regret anything from these guys. (Posted on 2/23/2020)
Easy to install, great looks, and makes a difference! Review by Lia
I bought this recently and installed it yesterday on my 2009 FXD, along with the XiED. The bike already had Vance and Hines Straight Shots slip-ons, so this basically finished out my Stage I upgrades (well, I'm planning on trying the Thunder Torque inserts soon as well). I went for about a 20 mile test ride after installing it, and the improvement was extremely noticeable! Acceleration is snappier, roll-ons without downshifting are definitely a level above the "stock except slip-ons" performance. Also, I had some throttle-surging at low speeds, and those are basically gone now.

The install was very easy, even for a woman like me who doesn't wrench very much. I chose the anodized black Breather Bolts for mine, as I have very little blow-by. However, with how well this "completing the Stage I upgrades" is working, it has me thinking of a cam and light head porting, lol. I'll keep an eye on things if I do go that route, and will happily buy one of DK's other breather solutions if I need them. For now, with just a Stage I 96ci engine, the Breather Bolts were simple and I'm betting will work just fine.

I'm super pleased with this purchase and the effect it has had on my bike's performance. I highly recommend this kit! Next step: installing the suspension upgrades I also bought from DK! :) (Posted on 1/14/2019)

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