DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891

Black Finned Complete HiFlow 587 Air Cleaner Sportster Harley

Availability: In stock
Item #: DK-AC-587-BFN-S
Manufacturer: DK Custom Products

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Black Finned Complete HiFlow 587 Air Cleaner Sportster  DK Custom Harley Davidson High Flow Air cleaner DK Custom Nightster Iron 48 Custom Low SuperLow Stage I K&N EFI Carbureted

Outlaw HiFlow 587

Air Cleaner System


Sportster Models 1991-UP

~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 Black FINNED Cover
  • Optional Matching Points Cover
  • Outlaw Breathers (NO Hoses, NO dirty air in motor)
  • 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 Sportster 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 Sportsters 1991-Up.

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 External Breather Systems for venting -   To see full details on All these choices Click  HERE

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


1.  All the 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. 



This System comes with a Billet Aluminum Black 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 Polished & 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 below. 


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.

Check out the Dyno Chart !  11% increase!  When combined with the Thunder Torques an even BIGGER Increase- Click HERE for more Dyno Charts.

"Perfect addition to the murdered-out look I'm building."  -Case

Customer Reviews

Great Addition to Iron 883. Review by Bob C
I installed the HiFlow 587 at the same time as a set of thunder torque inserts. The different in torque was immediate. The motor runs smoother and continues to pull through the gears. Once again the quality of the parts are top notch and fitment was spot on. (Posted on 1/7/2018)

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