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Raptor 700 Information => 700 General Discussion => Topic started by: Warren on September 01, 2008, 08:57:19 PM

Title: question about foam filters.
Post by: Warren on September 01, 2008, 08:57:19 PM
i know i know i have swore by my K&N for as long as i have had it. but like many have found there is small dirt particles down the throttle body throat. i am nervous about this. there was not alot but enough to make me nervous. so my question is does anyone make a foam filter that will work with the trinity intake adaptor i have? or is there a foam sleeve for the K&N filter i have? 
Title: Re: question about foam filters.
Post by: Gunz on September 01, 2008, 09:13:01 PM
If your going with a foam it needs to be a "Twin Air" hands down.       

Here ya go. You might go to their chart and find one that is the same dimensions as the K&N you are using, so that you can have the same air flow. They will have a clamp on that'll fit. The yfz one is 4.5"w and this one(TA158801) is 4.75"w.  This one is close.

http://shop.twinairusa.com/scripts/silverware.exe/moreinfo@d:/elevclients/twinairusa/ELEVATOR.FXP?item=TA152909C (http://shop.twinairusa.com/scripts/silverware.exe/moreinfo@d:/elevclients/twinairusa/ELEVATOR.FXP?item=TA152909C)
Title: Re: question about foam filters.
Post by: Krandall on September 02, 2008, 07:48:37 AM
I have the pro-design foam for my beast, it has the main filter piece, and then a "pre-filter" foam sock that fits over the real filter.
Title: Re: question about foam filters.
Post by: preddy08 on September 02, 2008, 08:12:05 AM
Quote from: 4gunz4x4z on September 01, 2008, 09:13:01 PM
If your going with a foam it needs to be a "Twin Air" hands down.       

Here ya go. You might go to their chart and find one that is the same dimensions as the K&N you are using, so that you can have the same air flow. They will have a clamp on that'll fit. The yfz one is 4.5"w and this one(TA158801) is 4.75"w.  This one is close.

http://shop.twinairusa.com/scripts/silverware.exe/moreinfo@d:/elevclients/twinairusa/ELEVATOR.FXP?item=TA152909C (http://shop.twinairusa.com/scripts/silverware.exe/moreinfo@d:/elevclients/twinairusa/ELEVATOR.FXP?item=TA152909C)

I agree, Twin air is a really good airfilter. Probably the best foam out there.
Title: Re: question about foam filters.
Post by: Danny T on September 02, 2008, 12:52:41 PM
twin air is also VERY easy to clean:)
Title: Re: question about foam filters.
Post by: Warren on September 02, 2008, 06:30:53 PM
where is the chart. i can't find it on the website. the inside diameter of my K&N mounting flange is 3.5 inches.
Title: Re: question about foam filters.
Post by: Bert on September 03, 2008, 08:01:37 AM
AMSOIL sells twin air
http://www.amsoil.com/amsoillookups/powersportslookup.aspx
Title: Re: question about foam filters.
Post by: Krandall on September 03, 2008, 08:35:26 AM
How is the twin air for flow though? ???

The better it keeps dirt out, the more it restricts.
Title: Re: question about foam filters.
Post by: Bert on September 03, 2008, 09:15:24 AM
I found this, not sure how it compares to the others

*Standard Twin Air dual-stage foam filter has 45 pores per inch (PPI) on the outer     and 60 PPI on the inner foam

*Total thickness of the foam layers when bonded together equals 15mm

*Twin Air foam layers are not glued together, they are laminated

*The lamination process does not restrict airflow between the two layers

*Twin Air foam is open cell polyester foam
Title: Re: question about foam filters.
Post by: who else but rk on September 03, 2008, 09:29:55 AM
Quote from: Krandall on September 03, 2008, 08:35:26 AM
How is the twin air for flow though? ???

The better it keeps dirt out, the more it restricts.
think about it this way.
team factory KTM runs it
so does team monster/ kawisaki
and various other teams

its a great filter. but dont leave it in the sun too long or it will look lke this
(http://i83.photobucket.com/albums/j293/BLASTERkid52/P1000030.jpg)
Title: Re: question about foam filters.
Post by: Krandall on September 03, 2008, 09:36:33 AM
I've been more than happy w/ my pro-design one. I'll take some pics of it this weekend when I get up there.
Title: Re: question about foam filters.
Post by: r00st on September 03, 2008, 04:23:24 PM


I too have an intake like that but want a foam filter. Am undecided on what to get.
Title: Re: question about foam filters.
Post by: Kenneth on September 03, 2008, 07:22:05 PM
I like all the foam filters on the market... Stock, Twin Air and Uni all do their job by keeping the dirt out. If you wanted to order 3 replacement Uni filters (2 for spares) I can do 59.00 shipped. If you wanted just one 36.00 shipped.

Take Care
Title: Re: question about foam filters.
Post by: r00st on September 03, 2008, 08:18:43 PM
That is a good price Kenneth. Can you order any size Uni filter If I get you a part number? I am considering the FCI intake (if they will just sell me the tube/box) and getting 1-2 of the Uni's (would need to be a pretty big filter, which I can sort out through Uni)

Also, I shot you an email about the Houser arm status (should be at my house any day!) so was curious about the Motowoz shock status (if they figured out the needed length, and if they have an ETA on them). You can pm me if you wish so we dont clog up this thread.
Title: Re: question about foam filters.
Post by: Warren on September 05, 2008, 04:18:11 PM
Quote from: KB Motorsports on September 03, 2008, 07:22:05 PM
I like all the foam filters on the market... Stock, Twin Air and Uni all do their job by keeping the dirt out. If you wanted to order 3 replacement Uni filters (2 for spares) I can do 59.00 shipped. If you wanted just one 36.00 shipped.

Take Care


what are the deminsions of these foam filters you speak of?