DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891

Naked HiFlow 606 Air Cleaner Back-Plate Dyna Softail Touring - Rushmore w/ No Filter Element

Availability: In stock
Item #: DK-AC606-TC-NF
Manufacturer: DK Custom Products

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DK Custom HiFlow 606 Air Cleaner Dyna Softail Touring - Rushmore System HD All Twin Cams Dyna Softail Touring DK Custom High Flow Harley Davidson performance air cleaner 606 intake kit K&N EBS External Breather System TBW Cable Operated

Outlaw HiFlow 606 Back-Plate

Air Cleaner

(No Filter Element*)


Dyna~Softail~Touring~Trike Twin Cam Models

~High Performance Air Cleaner~

~Designed To Fit The 'RUSHMORE' OEM Cover~

 ~Fits EFI & Carbureted~

MADE in The USA!

DK Custom Products



  • No Filter Element Included*
  • 6 1/4" Base & 5 1/2" Face Diameters
  • Backplate Black Powder Coat Finish
  • Choice of Support Brackets
  • Naked - No Cover - OEM Rushmore Cover Fits
  • Your Choice of External Breather System - EBS (NO oily air in engine)
  • A True Stage I Air Cleaner
  • Optional Rain Sock
  • E-Z Step-by-Instructions Included
  • Made in The USA!

*If you already have an HD-0800 or HD-0818 Filter Element

Like found on a Big Sucker or HD SE Stage I air cleaner 

You can use the HD-08XX Filter Element with this Air Cleaner System 


The Big Sucker and Screamin' Eagle air cleaners need modifications to vent externally. 

The back-plate & support bracket, in this kit, allow for fitment of an included BOLT-ON External Breather System, using your existing HD-0800 or HD-0818 filter element.


The Outlaw HiFlow 606 Air Cleaner will give your Big Twin the Air it needs to Produce Maximum Power.  CLEAN AIR - No dirty air routed back in! 

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

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

This is a must for at Stage 1 Upgrade.

 You can upgrade to the Outlaw HiFlow 606 Air Cleaner without doing any dyno work or adding tuners IF you leave the stock exhaust in place.

Replace the Restrictive stock air cleaner on your Twin Cam and wake it up!

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 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 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.


 This 606 comes with no cover.  A cover is not needed, and you can run it this way, or let your imagination run wild and secure any cover you want to it via, the center bolt in the filter element.

 Just about any HD or aftermarket cover (Round, Football, teardrop, etc.) will fit over it.  You can also choose to use one of our Covers designed to work with the 606, see them HERE

It is Specifically Designed to work with the OEM RUSHMORE Cover.  

The Rushmore Cover fitment is for Throttle-by-Wire Bikes/Trikes only.

The cable operated 606 does Not come with the hardware needed to fit the Rushmore Cover to it.



2000-2015 Softail (cable operated throttle) - Need to already have a HD-0800 Filter Element

2016-17 Softail (Throttle by Wire TBW) - Need to already have a HD-0818 Filter Element

2000-Up Dyna (cable operated throttle) - Need to already have a HD-0800 Filter Element

2000-2007 Touring (cable operated throttle) - Need to already have a HD-0800 Filter Element

2008-Up Touring (Throttle by Wire TBW) - Need to already have a HD-0818 Filter Element


If you have a 2008-Up Touring Model, or a 2016-17 Softail, it has Throttle by Wire (TBW) and you must check the TBW option below to get the correct backplate.


 **This Air Cleaner System comes with a Support Bracket.  If you already have an aftermarket support bracket for your cable operated bike,  you may click the box above and save $22.  

If you have a Throttle-By-Wire bike, you have a black Support Bracket already and you may click the box above and save $22, or you may also choose to upgrade  to a Chrome Support Bracket  by clicking above, "Yes, I need a Support Bracket".

Look at our Support Brackets HERE.

 NO FILTER ELEMENT IS INCLUDED WITH THIS KIT.  This kit is designed for those that already have a HD-0800 for Cable Operated or HD-0818 for Throttle By Wire Filter Element.

*** For the TBW, with the HD-0818 Filter elements, YOU will NEED to slightly ENLARGE the three mounting holes in your filter element for it to fit this 606 back-plate.  This can be done with a drill or a dremel.  If you do not wish to do that, then you should get the full kit, that already comes with the modified filter element, you can see it at this LINK.

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.

"I wanted a Free Flowing Air Cleaner that has an External Breather System built into it.  I was tired of seeing all that oil in my Throttle Body with my Screaming Eagle Stage I air cleaner.  This was the perfect solution, saving me money by being able to use the filter off my SE air cleaner.  This works perfectly."   -Jeff



Customer Reviews

It's great! Review by Frenchy
After purchasing the backplate to pair with a previous external breather, I was impressed with a much better throttle response and filter fitment to the backplate. No more messy filters! Great investment for my late model twin cam! (Posted on 2/24/2021)
Real deal Review by Lucien
I like not having hot motor oil in my combustion chamber. Oil is not meant to be burnt. There is a notable difference in performance or the freeing feeling my motor isn’t slowly being put to sleep makeS it that much better. These people aren’t feeding you a line of shit!
It’s the real deal! A true stage 1 , Thanks DK
Oh I have one on the 2 bikes I own. (Posted on 10/13/2020)
Super fast delivery of top quality products Review by Old school biker
Super easy to install. Really cleaned up the entire air cleaner area, a cleaner look than the stock crap and makes for a cleaner running engine. Very happy! Got what I paid for for a change and then some! (Posted on 5/27/2020)
Naked hi flow Review by Biker
Fast delivery very easy kit to put on highly recommend (Posted on 4/1/2020)
Naked air flow Review by Biker
Fast delivery very easy install (Posted on 4/1/2020)

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