DK Custom Products

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Text: 662.420.4891
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Transformer™ EBS Refresh Kit For Harley Twin Cam Throttle By Wire and Cable Operated Models

Availability: In stock
Manufacturer: DK Custom Products

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Premium Catch Can EBS SysTransformer™ External Breather System EBS For Harley Twin Cam 4 Stage Catch Can EBS Twin Cam TCtem Harley Twin Cam DK Custom External Breather System Sportster & Big Twin Evo Roadster  High Flow M-8 Milwaukee-Eight Softail Twin Ca

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Refresh Kit

for the



External Breather System



Twin Cam

Throttle By Wire and Cable Operated Models

DK Custom Products

Made in The USA!



  • Two Gaskets
  • 6 O-Rings 
  • 1 Long Piece of O-Ring Stock


This is a Refresh Kit for the Transformer External Breather System!  





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)



What is Different about the Transformer™?

  • No banjo fittings

  • No visible hoses

  • Looks like a compliant set up

  • Can be "transformed" to be compliant

Increased Intake length facilitates a faster/smoother intake charge (=More Power)


The hot, oily, air is coming out of the heads, through the bolts, and traveling into these small holes into the inside of the External Breather System...

...Moving down & eventually out of this exit hole at the bottom, where a discrete barb & hose are installed for routing to your catch can or filter.


What's Up on The Inside? How Does it "Transform" to Be EPA Compliant?

 To "Transform" this EBS, use the provided allen wrench to remove the 6 screws holding the backplate of the EBS in place...



 Want to Be EPA Compliant? (who knows what the future holds) Here's how the transformation happens....


By simply removing these small rubber seals from each side of the Transformer, the blow-by... now traveling into the into your intake, making your Harley EPA compliant.


 Transform it back to feeding your Harley Cool, Clean Air by replacing the rubber seals previously removed!

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