DK Custom Products

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Twin Cam & M8 Discrete Head Breather System Touring Softail Dyna

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

Twin Cam Discrete Head Breather System Touring Softail Dyna DK Custom Harley Davidson High Flow EBS Outlaw M-8 Milwaukee-Eight Stage I Trike Tri Glide Freewheeler Big Twin Evo

 Discrete & Flexible Breather System




DK Custom Products



  • Fits almost All Air Cleaner Systems
  • Allows Discrete Placement of the supplied filter
  • Chrome Washable Reuseable Filter - flexible placement
  • Includes 6 feet of hose for maximum flexibility in filter placement
  • All needed hardware
  • Turn-Key System


In the picture below you can see one of many different places you can affix the filter.  Please look at the additional pictures at the bottom to see how discrete this external breather system is.

Twin Cam Discrete Head Breather System Touring Softail Dyna 

An external Breather Kit is preferred with any Air Cleaner System.  This allows for only clean cool air to go into the air cleaner and engine, increasing performance and engine longevity.  This kit will work with the OUTLAW HiFlow 587 & 425 Air Cleaners and most other aftermarket Stage 1 Air Cleaners*.  It can even be used with the stock air cleaner.

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

With this breather system you will experience a slight performance increase.  This is because engines like Cold Dry air!

E-Z Install

Fits All Twin Cam & Milwaukee-Eight Models - 2000-Up Touring & Softail, 1999-Up Dyna


*If your air cleaner system will accept the Stock OEM breather bolts, then this breather kit will allow you to route the hot oily air to the supplied filter that you can place anywhere you like.  Will also work with any air cleaner system that has breather bolts with a nipple on the end to accept the supplied hose.

Filter may, or may not, have a small loop in it.  This does not affect the aesthetics or installation choices. 


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.

Larry’s Discrete Head Breather System on 2015 Tri-Glide with Rushmore A/C with the Stock Cover

(also used a Vented Chrome Catch-Can, which you can see HERE)


Hope this will help someone else with their installation.


The pictures are as follows:



#1 - K&N air filter with nylon plug in hole where stock hose was.




#2 -  Stock hoses connected to hoses in kit, and exiting bottom of air filter housing through hole I had to drill.





#3 - Hose running on top of cam cover. ( I put a piece of split nylon wire wrap over rubber hose to protect it from heat and rubbing )




#4 - Hose routed on left side of oil pressure switch.





#5 - Hose routed on left side of rear brake control cylinder.




#6 - Hose coming straight down and secured with wire tie. Catch can is very secure and easy to access.





#7 Air filter installed. There is plenty of room for it and the breather hoses. Works great, and I think it looks fairly good.


Customer Reviews

Awesome little kit Review by Downshifter
Easy to install and works great! (Posted on 6/13/2019)
Easy Breathin Review by Ironhead Spence
Great kit. I reroute every head breather I own and friends/family bikes that I work on. This kit has everything you need! Great stuff, thanks DK (Posted on 4/10/2019)
Easy made simple Review by Thumper
Pretty simple setup and assembly and hardest part was deciding where to put the filter
quality parts and easy instructions
(Posted on 3/30/2019)
DK makes it easy for you... Review by solattttttt
The eaxact parts I looked so long and hard for but never found.
Maybe I din’t know where to look for them. So I gave up and DK hooked me up with what I knew would work and for a price I could live with.
Parts are best quality. So no need to worry about that.
Easy to follow instruction are always packaged with priducts and pdf on line too
Thanks DK (Posted on 2/2/2019)

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