DK Custom Products

Phone: 662.252.8828
Text: 662.420.4891
Email: [email protected]

Stage 3 Anodized Black Breather Bolts Harley Sportster & Evo

Availability: In stock
Item #: DK-BB-AB-SPT
Manufacturer: DK Custom Products


Stage 3 Anodized Black Breather Bolts Harley Sportster & Evo Harley Davidson  External breather System  EBS DK Custom vents Stage 1 48 72 Iron Roadster Custom




Sportster Models 1991- UP

Big Twin Evo's

MADE in The USA!

DK Custom Products/Meadows Moto



  • Military Stage 3 Hard Coat Anodization - 80 Rockwell Hardness rating
  • Machined aircraft aluminum
  • Dual Screens with Filter PLUS 2 more Screens and extra filters included
  • Set of Two
  • No More Hoses
  • Made in The USA!
  • Better power perfomance, see Dyno Chart at bottom

Stage 3 Anodized Black Breather Bolts Harley Sportster & Evo

This pair of Outlaw Breather Bolts will really clean up your ride!  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 Brass & Polished Aluminum.  These are a must-have when doing your Stage 1 upgrade.

E-Z Install

Fits All Sportsters 1991 & Up (except XR1200)

Fits Big Twin Evo's

Fitment Notes:

These will work with The Outlaw type Air Cleaners from DK Custom and any other air cleaner that uses a 1/8" thick support bracket.

These Breathers come in 1 size- 3/4" thread length

These Military Grade Stage 3 Black Anodized Breather Bolts have a rating of 80 Rockwell hardness to the black anodization.  They have a high resistance to chipping or discoloring. 

They also come with THREE different color screens. Brass, Copper and Steel.  Also included are 2 extra filters.

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

Customer Reviews

Clean Review by Ditch
As I haven’t had the chance to run the bike with them on yet. I will say these are great quality and sure do look nicer than having them hoses. I had also purchases the Rocker Lockers and replaced all the gaskets including the umbrella valve which the ones I took out were hard. I’m certain with the oil advice from D.K. I’m gonna have less of a mess. D.K. Rocks!!!! (Posted on 5/15/2023)
Bravo Review by Shawn
Few products on the market come even close to these, the simplicity and execution is excellent . I’m really impressed and glad I went with these . (Posted on 11/6/2022)
Breather Bolts Review by Charlie
Awesome product, eliminated the ugly hoses and the need for a catch can! (Posted on 7/1/2021)
looks great Review by zac
fit perfect really clean up the side of the motor vs having a external breather hanging there. (Posted on 5/13/2021)
Looks good Review by Pablo
Easy install and I like the way it looks on my iron 1200 looks good with no hoses would definitely recommend this product (Posted on 1/20/2021)
Great product fast shipping great customer service Review by Breather bolts
Excellent product and staff (Posted on 12/22/2020)
Black Breather bolts Review by Nick
Easy install. Looks and works great on my 48 (Posted on 4/30/2019)

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