DK Custom Products

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

Complete HiFlow 606 Air Cleaner Dyna Softail Touring - Rushmore

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

* Required Fields


Complete 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

Air Cleaner System


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



  • Tapered HiFlow Genuine K&N Air Filter
  • 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!


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! 

This System is TURN-KEY.  It comes with everything you need 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.  See Filter Service Care Kit HERE.

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- The Traditional or the 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.

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.  

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

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)

2016-17 Softail (Throttle by Wire 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.


 **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.


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 have been looking for a Free Flowing Air Cleaner that I can use my Rushmore 103 cover with.  This works perfectly.  Thank you!"   -Davis



Customer Reviews

More throttle response Review by Cucca
Great product, noticed improved throttle response and overall better running engine. No more dirty oil going back into the cylinders. (Posted on 11/14/2023)
Works good Review by wimpy
I did a tune before I ran it, definitely performs better. (Posted on 11/13/2023)
Impressive Review by Luke
Excellent quality. (Posted on 8/25/2023)
Impressive Review by Luke
Excellent quality. (Posted on 8/25/2023)
HiFlow 606 Air Cleaner Kit Review by Grey_Bush
WOW, what a difference. Do you want to unstrangle your engine. Well this is the first stop on doing that. Once you have unrestricted airflow you have such a happy engine. Again functional and pretty. What more can you ask. (Posted on 4/24/2023)
More air, more power! Review by DC
It's amazing what a low restriction air intake did for the power increase on my TC Ultra. It was the last piece in my stage one upgrade and it works great. (Posted on 8/29/2022)
Was easy to install and works with my X 16 cover Review by Pugsly
Easy to install and works with my existing cover (Posted on 5/27/2022)
Noticeable Performance Improvement Review by James
Replaced Screamin Eagle air cleaner with the 606 and external breather kit. Actual seat of the pants difference. More throttle response and consistent torque pull. Pleasantly surprised! Highly recommended! (Posted on 4/22/2022)
Nice! Review by YZR
Pretty simple install once I figured out where everything went.
Bike runs great with better air flow! (Posted on 7/30/2021)
Provided a Significant Improvement!! Review by Wes
I installed this extremely well made Air Cleaner along with their Premium Catch Can EBS System. After installing new the PV Tune, the benefits were instant. The power increase was noticeable, but more apparent to me was that I could feel that the seemed to breathe and run cruising. Just a more relaxed tone and rhythm from the engine.

One of the best upgrades for dollars spent! (Posted on 5/4/2019)

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.