DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891

Catch Can or Filter Premium Discrete 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 Premium Discrete External Breather System




That have a Arlen Ness Inverted Air Cleaner

DK Custom Products



  • Fits Ness Inverted Air Cleaners & similar designs
  • Your Choice of a Filter or 4 Stage Catch Can
  • 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


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.

When ordering, you have a choice between a Filter, or a Black or Chrome Catch Can.  

 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

NOT FOR A M8 Review by Jsmoot
When I clicked through the links it lead me to this, the links were for m8 and ALL Arlen ness inverted air cleaners. This is for a twin cam, not a twin can like the site says. It was partially my bad because the last page says twin cam. The folks at DK are great though and issued me a return. And the product is great if you have a twin cam, wished it would have fit my m8. (Posted on 3/19/2021)

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