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post #1 of 59 Old November 13th, 2013, 08:49 AM Thread Starter
 
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New air filtration system for your XP

Last year I decided to do a few engine mods on my XP. I installed an Alba SBD kit with auto tune and was really happy with the performance increases for the type of riding I do. The one major draw back was the K&N filters I used inside the stock air box. While they seemed to allow adequate airflow, one day in Moab completely blocked my filtration. They are a bitch to remove and clean and marginal at filtering IMHO. I started looking into making my own system and while surfing the internet I found a company that was started by an friend that happen to own another company with some of the most bad ass steering systems for off road vehicles. I called Jeff Howe of Howe Performance steering and asked about his other company, Advanced air filtration systems. I told him that I was looking for a filter and housing that I could make fit on my Rzr without restricting air flow. He said that I called at just the right time and he was working on a prototype system for the XP. I said cool...send one out... Before I get into details, I will mention that this kit would not be good for mud or heavy water usage. I really don't do mud and the majority of my riding is desert and forest conditions.
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post #2 of 59 Old November 13th, 2013, 09:14 AM Thread Starter
 
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Re: New air filtration system for your XP

The problem with most kits on the market are they either filter great and have marginal airflow or they have great flow but don't mount under the bed. Advanced air filtration systems prototype system completely mounts under the bed. Well almost... It requires a section to be removed under the original air intake pre filter area. It is then covered by a fiberglass scoop that ties into the lines of the original bedside. The other issues with other systems is the intake tube diameter. Jeff ovalized 4 inch tubing to allow it to pass through the stock framework. He also used 6 inch tubing in the 90 elbow section so that airflow would not be restricted. The aluminum sheetmetal is a work of art and the air box incorporates machined velocity stacks that curve at the tip of the bell to not allow a high pressure at the edge of the stack. The Filter housing is also a well thought out piece that has billet ends that hold the filter assembly without an external housing. All this allows the whole assembly to remain under the bed. This filter is an agricultural filter that has been used on Baja trucks for quite some time and provides an amazing increase in filter area coverage over stock and the K&N's I used last year.
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post #3 of 59 Old November 13th, 2013, 09:34 AM Thread Starter
 
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Re: New air filtration system for your XP

The whole system mounted without an issue and after a little cutting(bed side) I was ready for some testing. The intake noise was slightly noticeable but not irritating. I actually felt a slight seat of the pants increase in pull from the previous filtration I was using. The whole system is a work of fabricating art. That being said it will not be cheap. The system will most likely sell in the grand and change range. That's expensive for a filter but if you look at the amount of fabrication that went into the system I think it's worth it. Having a filter that I know will work under the harshest conditions and still maintain proper airflow and not require me to clean it every other day while out at Moab is huge. I should never have to worry about sucking in a bunch of fine dust like the stock miss-engineered air box. The bottom of the filter housing also has a plate to keep road debris from hitting the filter. It's held in place by the housing rails that pull the billet filter ends together.
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post #4 of 59 Old November 13th, 2013, 09:44 AM Thread Starter
 
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Re: New air filtration system for your XP

I haven't personally done any dyno testing on this setup but will say my XP rips for a RZR that lives at altitude. I can bake my 28's out of the hole on blacktop and it pulls very strong up to max speed. See photo below...haha I'm not tied to Jeff's business in any way, just thought I would share my observations about a new idea and product that some might find useful. Here are a couple more photo's of the finished product.
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post #5 of 59 Old November 13th, 2013, 09:49 AM
 
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Re: New air filtration system for your XP

Is it a disposable filter? What does filter element cost and how easy to change? Does it install without bed removal?
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post #6 of 59 Old November 13th, 2013, 09:50 AM Thread Starter
 
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Re: New air filtration system for your XP

Couple more photo's of the finished look... Jeff has also mentioned making a matching scoop for the right side to help move air to help reduce exhaust temps around the shock area.
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post #7 of 59 Old November 13th, 2013, 10:07 AM Thread Starter
 
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Re: New air filtration system for your XP

Quote:
Originally Posted by Rzr4mph View Post
Is it a disposable filter? What does filter element cost and how easy to change? Does it install without bed removal?
It is a disposable filter. Same one that Jeff uses on V8 applications, so it should last pretty good without having to be replaced very often. I think the filters are in the low $30.00 range and are very easy to change. No need for bed removal. I take off the right bed side ( 9 screw's I think) and then have access for the complete install. For a filter change, remove the bellows clamp and front housing mounting clamp bolt, then The billet housing ends are held together by rods which unbolt from the ends.
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post #8 of 59 Old November 13th, 2013, 12:01 PM
 
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Re: New air filtration system for your XP

Any idea when they may be available? I like the looks of that.

Sent from my SCH-I535 using Tapatalk 2
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post #9 of 59 Old November 13th, 2013, 12:15 PM
 
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Re: New air filtration system for your XP

I'm concern with price. Similar ump system half cost and I've seen couple of those for sale used implying buyers not happy with them


For $1000+ would need to be self cleaning and best performing system available IMHO

Does look well built and nice design.
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post #10 of 59 Old November 13th, 2013, 12:41 PM
 
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Re: New air filtration system for your XP

Glad to see a newly designed product and Happy to here Jeff is behind it ... He's a great guy.
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post #11 of 59 Old November 13th, 2013, 01:53 PM
 
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Re: New air filtration system for your XP

Gorgeous workmanship. Bravo. Does look like it is made from Unobtanium (price wise).


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post #12 of 59 Old November 13th, 2013, 02:17 PM
 
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Re: New air filtration system for your XP

Foam pre-filter, the only way to go!
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post #13 of 59 Old November 13th, 2013, 07:50 PM Thread Starter
 
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Re: New air filtration system for your XP

Quote:
Originally Posted by 05stroker View Post
Any idea when they may be available? I like the looks of that.

Sent from my SCH-I535 using Tapatalk 2
Talked to Jeff today and he said that he has a couple left right now out of his first run.

Howe Performance Power Steering
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post #14 of 59 Old November 13th, 2013, 07:58 PM
 
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Re: New air filtration system for your XP

Looks cool . What happens when you oil the pre foam outer wont the oil soak into the paper filter inside causing restriction and a oil soaked inside filter .
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post #15 of 59 Old November 13th, 2013, 08:25 PM Thread Starter
 
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Re: New air filtration system for your XP

Quote:
Originally Posted by Darrell View Post
Glad to see a newly designed product and Happy to here Jeff is behind it ... He's a great guy.
Yep Jeff is a good dude who really knows the desert game. He is always at an off road event somewhere.

Quote:
Originally Posted by Rzr4mph View Post
I'm concern with price. Similar ump system half cost and I've seen couple of those for sale used implying buyers not happy with them
For $1000+ would need to be self cleaning and best performing system available IMHO
Does look well built and nice design.
You are correct. UMP's are about half the price, but here is why. Nate at Alba has done a bunch of dyno work with different filtration systems. The UMP system lost power over the other filters ( 3 inch intake tube vs. 4 inch in the Advanced design), but It was one of the only filters that he recommended for harsh dust conditions...until now. If you want a filter that works and actually helps produce power and mounts under the bed, then here ya go. If you look at the cost of a new motor that your replacing because your stock filter inhaled a bunch of dust, then you might feel justified on spending the extra cash. This system will not be for everyone. Once you do cams and a tune, I feel the extra filtration, engine security, the lack of extra maintenance, and additional intake flow is well worth the money for what your getting. The photo below shows part of the thought that went into this system. If you have a velocity stack that is not turned down and curved at the lip it will create a high pressure area around the lip. Turning a piece to have this tulip shape will produce a low pressure area at the lip which in turn will increase velocity. It is something the motorcycle racers have been toying with for sometime.
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