[Rob-c]

This is my poor mans ehs racing mod copy, I knew I wanted to use the bell end of the factory unit . So I cut out the middle and adjusted it so the 2 half’s would fit in the air box. Measured the inside diameter of the intake and found that a 2 inch exhaust pipe would work perfect to bridge the gap and be thin enough and stiff enough to give support and not restrict air . I cut a 2.5 inch piece off the pipe, smoothed the ends and superglued the bell end on to it .
I install the bell side into the air box ( and as you can see it’s very close to a perfect fit in my adapter ) then the throttle body side of the of the intake is slid onto the air box and is slid over the exhaust pipe connector simultaneously. The exhaust pipe is a very tight fit in the factory hose a little lube is needed to get it pushed on all the way . I haven't installed the air box yet but will let you guys know what I think when I do get it together.

 

[Nomad]

Did you use 2" O.D pipe? How did it all work out for you?

 

[KodiakAfishyo]

Stock filter works fine with a block of wood to keep it tight against intake.

 

[Rob-c]

Did you use 2" O.D pipe? How did it all work out for you?

Yep 2 inch o.d , works great got it all installed and took it for a quick ride. I assume I must have picked up a few h.p. As Eric from ehs stated just cutting the intake shorter you will pick up a few.

 

[Rob-c]

Stock filter works fine with a block of wood to keep it tight against intake.

I did that with mine and the wifes kodiak last season after getting them. After pulling the intake off the throttle body I found some dirt build up on the throttle blade and throttle body. So I am glad I did this conversion , I myself think the foam seal on the end of the factory filter is not a 100% filter
. To each their own ....

 

[CanadianKodiak700]

Yep 2 inch o.d , works great got it all installed and took it for a quick ride. I assume I must have picked up a few h.p. As Eric from ehs stated just cutting the intake shorter you will pick up a few.

You won't gain hp from a simple air filter mod, but you will gain throttle response.

Sent from my Pixel 2 XL using Tapatalk

 

[JimP]

If you could gain as much HP as manufactures say that you can you could gain twice the amount that the engine is capable of putting out by just bolting their merchandise on.

 

[Rob-c]

You won't gain hp from a simple air filter mod, but you will gain throttle response.

Sent from my Pixel 2 XL using Tapatalk

Well regardless, it’s still way better than the factory set up. And it was a low cost mod that will pay off in the long run.

 

[Nomad]

Gains in power are the least of my concerns. Improving on a poorly designed unit is my primary concern. Any performance gains would be gravy to me.

 

[Rob-c]

Gains in power are the least of my concerns. Improving on a poorly designed unit is my primary concern. Any performance gains would be gravy to me.

I agree 100% ..

 

[Nomad]

Just about to do this mod myself. I found an alternative to the piece of steel pipe. It was staring me right in the face from the garbage can at work lol. It's a piece of plastic tube from a caulking tube of high temp red rtv silicone. Thin, strong and exactly 2" od.

 

[Kokopelli]

The tube on my 2020 just sticks through exactly enough. My K&N replacement filter seals up nicely. Makes me suspect that Yamaha modified the tube..

 

[Rob-c]

The tube on my 2020 just sticks through exactly enough. My K&N replacement filter seals up nicely. Makes me suspect that Yamaha modified the tube..

Interesting , how about a picture .

 

[Kokopelli]

Interesting , how about a picture .

Sure... My Barkers slip-on is due to be delivered on Tuesday, over a week late but at least it's scheduled. I'll be taking the mule apart by Wednesday for sure. I'll take pics and document everything in a new thread... I've been modifying airbox's since I was a teen and I'm truly thrilled with Jenny (the Kodiak) and my garage shop. It's kinda like getting back to my roots. I grew up ina garage working on and racing bikes and cars. My needs are probably different than most here. I use the quad as a mobility vehicle as I can't walk very well anymore..

 

[Rob-c]

Sure... My Barkers slip-on is due to be delivered on Tuesday, over a week late but at least it's scheduled. I'll be taking the mule apart by Wednesday for sure. I'll take pics and document everything in a new thread... I've been modifying airbox's since I was a teen and I'm truly thrilled with Jenny (the Kodiak) and my garage shop. It's kinda like getting back to my roots. I grew up ina garage working on and racing bikes and cars. My needs are probably different than most here. I use the quad as a mobility vehicle as I can't walk very well anymore..

Something therapeutic about turning a wrench, using your hands to build or fix something. Glad to see your getting back on the horse so to speak.