DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891

Stealth Polished Aluminum Breather Bolts Harley Sportster & Evo

Availability: In stock
Item #: DK-SBB-PA-SE
Manufacturer: DK Custom Products

Harley Davidson Sportster Stealth Air cleaner support bracket polished aluminum Roadster  high flow 72 48 Big twin evo breather bolts DK Custom vents Stage 1 High flow





Sportster Models 1991- UP

Big Twin Evo's

MADE in The USA!

DK Custom Products



  • Machined & Then Polished
  • Dual Screens with Filter
  • Set of Two
  • 3/4" Long Thread
  • Includes Stealth Install Tool
  • No More Hoses
  • Includes extra screens and filters
  • Made in The USA!



This pair of Stealth Polished Aluminum Breather Bolts is the cleanest External Breather System (EBS) available!  No more hoses or filter. 

The filter is built into the bolt.

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

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.

With the Outlaw Racing Breather Bolts you will experience a slight performance increase.  This is because engines like Cold Dry air!

Also available in a Tumbled Aluminum Finish and Anodized Black Finish.  These are a must-have when doing your Stage 1 upgrade.  Click HERE to see all External Breather Systems (EBS) for Sportsters and Big Twin EVO's.

E-Z Install

Fits All Sportsters 1991 & Up (except XR1200)

Fits Big Twin Evo's

Fitment Notes:

These Breathers come in-

3/4" thread length

The most popular size after-market support brackets are about 1/8" thick.  The standard 3/4" Breather Bolt is used in this instance.


"These things are fantastic!  Clean, simple & effective." -Brad

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