DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891

Hidden External Breather System for AN Inverted A/C - Twin Cam

Availability: Out of stock
Manufacturer: DK Custom Products

DK Custom External Breather System EBS Harley Twin Cam M8 Arlen Ness Inverted Air Cleaner

  A HIDDEN External Breather System




That have a Arlen Ness Inverted Air Cleaner

DK Custom Products



  • Fits Ness Inverted Air Cleaners & similar designs
  • Hidden Placement of the hose & filter
  • Custom Cut Spacers & Hardware replace internal venting
  • No more hot, oily, oxygen depleted air going into your intake
  • Direct bolt-on
  • Includes Step-by-Step instructions


In the picture below you can see the Arlen Ness Inverted Air Cleaner, but you cannot see the External Breather System.  It is hidden behind the backplate.




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. 


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!

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

When ordering, choose between cable operated throttle and throttle by wire.

 We also have Optimized Arlen Ness Inverted Air Cleaner Systems that can be seen at this LINK.

 More External Breather Systems (EBS) can be seen HERE.

PLEASE NOTE:  Even though it is in the title, at the top of the description at the top of this page, and in the Fitment notes above.  This is for Twin Cam's, it does NOT FIT Milwaukee-Eight engines.

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.

Customer Reviews

Just what is needed for the Arlen Ness filter Review by Jet101
Like many of us, the oil blow back is annoying and messy. After reviewing many other options and forum discussions the Hidden breather system designed around the AN inverted filter seemed to be my solution. I was pleased with the price, customer service and quality of the kit. Installation was easy with everything nicely packaged together.
After 300 miles not a drop of oil is on the bike or leaking from the connections.
My only comment is I wished DK Custom would have had the option for a chrome spacer, no big deal just a cosmetic thing since I have a lot of chrome. Well done DK Custom. (Posted on 7/23/2018)

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