- Home /
- DIY Head Breather System Touring Softail Dyna Sportster
DIY Discrete Breather System
For
Harley-Davidson
FITS ALL TWIN CAM, MILWAUKEE-EIGHT MODELS & SPORTSTERS
DK Custom Products
FEATURES & SPECS:
- Fits All Air Cleaner Systems w/ Stand-off back plates
- Allows Discrete Placement of the supplied filter
- Chrome Washable Reuseable Filter - flexible placement
- Includes 6 feet of hose for maximum flexibility in filter placement
- DIY Kit requires drilling & tapping
- Includes Step-by-Step instructions
In the picture below you can see the stand-offs that are part of the backplate (that butt up against the heads). This system includes hose barbs that can be threaded into those stand-offs and allow you to vent externally, as discretely as you would like.
This Picture is showing an Ness Big Sucker Air Cleaner that has our Sano Black Air Cleaner Cover, specifically made for Big Suckers & HD Stage I Air Cleaners. You can see this cover HERE.
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.
This DIY kit is designed for aftermarket Stage 1 Air Cleaners that don't allow for venting out the end of the breather bolt. It can even be used with the stock air cleaner.
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 & Milwaukee-Eight Models - 2000-Up Touring & Softail, 1999-Up Dyna
Fits All Sportsters & Big Twin Evo Models - 1991 & Up
*This kit requires drilling (11/32" drill bit) and tapping (1/8" NPT Tap) threads into the stand-offs (that are part of the backplate). The benefits are that you can completely hide the hoses, if you wish, and it will work with air cleaners where no other external venting system will work.
Drill bit & Tap kit is an option above.
If your air cleaner system will accept the Stock OEM breather bolts, we have other breather kits that are straight bolt on, not requiring any drilling or tapping. You can see the one for the Sportster HERE, and the one for the Twin Cams HERE.
Filter may, or may not, have a small loop in it. This does not affect the aesthetics or installation choices. The filter may also vary in shape, size and color.
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.
Below are some photos showing various stages of Installation on several bikes.
For full instructions, please look at the Instructions tab.
Breather Installation Instructions
To see a series of photo's of various stage of installation on several bikes, click the Technical Info Tab
Below is a Video of installation-
13 Review(s) | Add Your Review
Customer Reviews
-
Quality Value
Very easy to install with the supplied drill bit and tap you can’t go wrong. Now I have it on both of my Road Kings. (Posted on 3/12/2023) -
Quality Value
Easy to install as long as you take your time and plan carefully. Still cold here on the east coast so we’ll see how well it holds up come riding season. Would recommend. (Posted on 3/9/2023) -
Quality Value
I did a stage 4 128ci on my 2021 Harley Davidson Road King and discovered a lot of thick carbon build up on my stock pistons with only 8000 miles on it caused by oil blow by! Installed the DIY external breather kit that fixed my problem! (Posted on 8/18/2022) -
Quality Value
So happy with this product. Was easy to install and I have noticed a difference in the way the bike runs. Was always tired of wiping out the air filter cover from excess oil. No need for that any longer. Thank you DK Custom! (Posted on 5/24/2022) -
Quality Value
The whole process was very straight forward, everything connected up and took no time at all. Great kit, I should have bought the drill bit and tap! (Posted on 10/24/2021) -
Quality Value
Good (Posted on 7/22/2021) -
Quality Value
Kit was complete and easy to install, the only change I made was to use a catch can rather than the filter. Just personal preference.
Kit installed on a 2012 FLS Softail. (Posted on 5/20/2021) -
Quality Value
First full I would like to thank DK custom for such DIY product and their suggestions while placing an order ,
It was so simple to install it and as per customer choice ..
I am sure it will work for ever . (Posted on 4/19/2021) -
Quality Value
Ordering was fast and simple. Product came very quickly. Install was easy with basic tools and knowledge required. The hardest part for me was just getting the filter in place, working just off the jiffy stand limits ease of placement. Overall great product I had oil definitely blowing by and my throttle body had a ring of oil around the butterfly. I have a 2018 Sport Glide and I installed it close to 4000 mi so hopefully it's good to go.
Thanks
DK (Posted on 1/27/2021) -
Quality Value
The kit had everything I needed for installation. The quarter inch pipe tap worked great and it was nice having the proper bit size included. The installation went without a hitch. I’m going to install their oil filter re locator next oil change. (Posted on 7/30/2020) -
Quality Value
Getting a lot of oil in air cleaner installed the kit very easy. Everything I needed top notch parts and service. I ordered the coil relocation kit also fit perfectly very satisfied. Would recommend DK if you want quality parts and great service. I’m going to order the oil filter relocation kits next when they have a sale Thanks Joe (Posted on 5/26/2020) -
Quality Value
Was Getting Blow By on My 18 Road Glide Special Now an then,Would be oil on Right Saddlebag an bottom of Air Cleaner.I run a Arlen Ness Big Sucker Under Stock Cover.This kit allows you to hide filter good.Have put 300 miles on no more blow by.Easy to install good instructions. (Posted on 8/12/2019) -
Quality Value
Works great so far, installing was simple with easy to follow instructions (Posted on 5/20/2019)
Product Tags
Use spaces to separate tags. Use single quotes (') for phrases.
- Scratch & Dent Specials
- Accessories
- Air Cleaner - Intake
- Apparel - Gear - Jewelry
- Coil & Key Relocation
- EFI Tuners
- Electrical
- Engine Upgrades
- Exhaust
- Footpegs
- Frame/Suspension
- GIFTS
- Gas Tank Lift Kits
- Lubrication
- Special Packages
- Tour-Pak Kits
- NEW PRODUCTS
- Reports
- BEST SELLERS
- Sportster Parts
- Dyna Parts
- Softail Parts
- Bagger Parts
- Trike Parts
- Home Reviews
- M8 Softail Parts
- Murdered-Out Mods
- Floorboards
- Floorboard & Footpeg Extensions