Looks like a good design.

 

Looks good. BUT never put any parts that could ever come loose inside the ID of the filter or that could come loose in those areas. Look at fitting parts behind the back plate.

 

I tried doing the bypass on mine with the Heavy Breather backing plate using the fittings from DK. I wasn't real happy with the results, as there is no place to route the hoses but down, which is pretty unsightly. Also, theres not a lot of room for the hoses, so I was concerned about the stainless rubbing against chrome, etc, and marring it. I will say, if you are concerned about your warranty, make sure you have a spare backing plate in the event that,,,oh,,,say your motor blows up at 333 miles and you have to take it in for warranty work. I wondered if a dealer could try to void a warranty for trying to defeat an EPA requirement.

I'm hoping that the aftermarket eventually addresses this when we have more A/C options out there. Either building the bypass into it, or making it it easy to do ourselves.

 

wouldn't wonder too long, you can be sure if like you said, your engine goes, it gets towed to a dealer and a warranty inspection is ordered..well...

 

I hear ya, all I can say is my OEM backing plate was on when the dealer came to my house to get mine.

 

there's alot more to it than that, that most people forget to consider. Even tho they're aware is bad. And that is that it's isn't just oil mist coming from the crank.
There's hot air. And moisture.
So what you actually have feeding into the intake is hot oil. Hot air. And hot steam.
When all you really want is clean fresh high octane fuel and cool fresh air.
So don't hesitate and unplug the hoses.

 

HOT OIL...HOT AIR.....and HOT STEAM....OH MY!!!!!

 

Air Cleaner Catch Can Installed On 2017 M8 Stock Air Box, Simple And Different.


Not all may agree with me here. I was not worried about taking the vapor out of the air box but I wanted to remove any oil condensate carry over into the throttle body. I also did not want to modify my air box at all. I purchased a catch can from DK Custom and installed it like this. I will service the catch can at oil changes to start with. The vapor will still be in the air box with this set up but outside the filter but the oil and condensate should drop out in the catch can in theory. This set up is a test to see how things go without modifying my stock air box.

You can see the oil in the throttle body in the pic below. My 2017 Tri Glide was right at full or a hair more new on a hot oil level oil check. At my first oil change I set the hot check oil level at 4 dots lower than the full mark with a hot oil level check. This has helped or prevented a lot of the carry over on my other Harley's in the past.

Also living in California with the way things are heading with the EPA crap I did not want to modify the stock air box by drilling any holes or making any noticeable changes to it. I am more than fine with the way the way the stock M8 runs and performs on our 2017 Tri Glide trike. It has more power and usable torque by far than our stage 1 2015 103 TC trike did.

See pic's below. It's pretty straight forward what I did.

Ride Safe All,
Bill G

 

You like that in your. Ombustion chamber? Than you have no reason being in olved in this discussion
go start one that does LOL

 

Bill G

Good job!