Shopping For:
  1. Clear Selected Ride Clear Selected Ride
  2. Manage Saved Rides
  3. Change Your Selected Ride
2004 KTM 250EXC-RFS

Twin Air Power Flow Air Filter Kit

Retail: $149.99
$139.99
You Save: $10.00 (7%)

Please choose an available item.

We're sorry, this product is out of stock.
Out of Stock
More Info
We've checked our inventory and all of our suppliers' inventory, and this item is not available for ordering at this time.
FITS: 2004 KTM 250EXC-RFS change
 
It appears you may have cookies turned off in your web browser, or are using a browser that does not support cookies. You must accept cookies to use our site. For questions call us at 1-888-676-8853.

Need Assistance?

Call 1-888-676-8853

You may also like

Twin Air Power Flow Filter - 2004 KTM 250EXC-RFS Twin Air Power Flow Air Filter Kit
Twin Air Power Flow Filter
$33.99
You Save: $4.00
No Toil Super Flow Air Filter Kit - 2004 KTM 250EXC-RFS Twin Air Power Flow Air Filter Kit
No Toil Super Flow Air Filter Kit
$44.99
You Save: $5.00
Moose Radiator Guards - 2004 KTM 250EXC-RFS Twin Air Power Flow Air Filter Kit
Moose Radiator Guards
$94.95
Twin Air Power Flow Air Filter Kit - Main
zoom: + −

Product Description

The best filter in the world can't do its job if there are leaks in the seal of the airbox. That's why Twin Air provides a complete line of products to ensure a leak-proof, fool-proof fit.

Don't let your stock set-up rob you of power and engine reliability. Twin Air is known for superior airflow filters. The PowerFlow Kit is a step above and beyond as it replaces the stock air filter cage with a stronger, lighter and better fitting version. These kits eliminate leaks and provide more air for power, and the filter can still be removed in a snap for cleaning. Twin Air eliminates the need for the spark arrestor screen because the PowerFlow air filter has a backfire-resistant layer of foam laminated to the inside surface supported by a rigid billet aluminum cage for improved airflow and power output.

  • Billet aluminum cage provides a tight seal to the airbox and replaces your flimsy plastic stock cage.
  • The backfire-resistant filter can easily be removed for cleaning.
  • A Twin Air PowerFlow Kit includes a pre-oiled PowerFlow Air Filter, a special aluminum cage, and all necessary mounting hardware.
  • Note: Image is for representation, actual product may very depending on application.

Replace your air-restricting stock backfire screen with the New Twin Air PowerFlow Kit and get the most from your motorcycle!

  • Customer Reviews
  • Ask an Expert
  • Also Offered For
(20)
4.5 out of 5 stars
5 star   13
4 star   6
3 star 0
2 star 0
1 star   1
Write a Review
“ This is a very nice filter cage, but it's not worth 150 bucks. ”
MXRacer97 Location: Santa Fe, NM
“ Just take the backfire screen off the stock plastic cage. ”
mxracingenthusiast
“ Have noticed a little more gain in the low range and most of all great quality. ”
MEXMX Location: Del Rio, TX
1-10 of 20
Overall
Top 250 Contributor
Location: Santa Fe, NM
Gold priced filter cage
This is a very nice filter cage, but it's not worth 150 bucks. I bought one for a CRF250R a few years ago and it was very trick. Since then I just cut the metal wire screens out of the stock plastic cage (which weigh about half a pound) and just buy the twin air backfire proof air filters. P.S. don't expect a huge horsepower increase, just improved off idle throttle response.
Overall
Location: daphne, al
Great product
execellent fit and craftmenship. i love the aluminun basket so much that i bought 2!
Overall
Waste of money
Just take the backfire screen off the stock plastic cage. Does the exact same thing! Than all you need is the filter wich is alot cheaper than this kit. WASTE OF MONEY.
Overall
Top 25 Contributor Top 50 Contributor
Location: Southampton, MA
Great Product
twin air makes the best filter hands down and no mesh screen= major plus!
Overall
Location: Pendleton,OR
Nice fit
Installed fine on CR450, Good seal, trick aluminum frame, worth the money if your running foam
Overall
Top 250 Contributor
Location: Del Rio, TX
Awesome
Have noticed a little more gain in the low range and most of all great quality.
Overall
Power Flow Kit
Overall, I think this is a really great product, especially for the CRF450's. Makes changing and cleaning the air filter a much easier task. The stock filter cage is a PITA to change, lets dirt in, and is hard to line up correctly. This kit lets zero dirt in and lines up in a snap. Best part I've purchased for my bike.
Overall
Top 500 Contributor
Location: Brewster, NE
Nice filter
The only thing that is wrong with lthis kit is that getting the filter clean takes much more work than a K&N, but the airflow is just as good if not better.
Overall
Top 250 Contributor
Location: bossier city la
Trick
fits perfect. cage is much lighter than stock. I like very much. I gave it 4 stars because its not really nessesary unless your riding woods. For a motocross track just take out your stock backfire screen and you will get the same effect. Ive never seen a bike catch on fire from that screen being removed, have you? Regardess of the fact that is a waste of money, its very trick.
Overall
Top 1000 Contributor
Location: Brookeville, MD
Array
Array
1-10 of 20
Total Questions (15)
Questions with answers:
  15
Questions without answers:
0
Have a question?
“ Stock filter cage?... ”
bigred2624
“ I just purchased this product and i don't see a filter bolt. ”
Ryan2122
“ Would you recommend the twin air kit on a yfz 450 over the modquad with k/n?... ”
brtayfz450
1-10 of 15
bigred2624 Over 3 years ago
Stock filter cage?
I have a 05 crf250 and was wondering if i could just cut my old cage out and use the Twin Air power flow filter?
Expert MotoSport Staff
Over 3 years ago
no you have to have there cage
Answer this Question
Brillo Over 3 years ago Location: Grand Rapids, MI
I currently own this product for a 2008 CRF 450. Wondering if this same cage will fit my 2010 KX 450?
MotoSport Staff Expert
2 years 12 months ago Location: Portland
No, they are different fitments.
Answer this Question
1bigb Over 3 years ago
Does this filter have to have the filter grease that is used with the stock filter to seal it to the air box?
Over 3 years ago
No it doesnt, any automotive grease will work also.
Top 500 Contributor
Over 3 years ago Location: Orange County, CA
I think that is a "personal Preference" issue. I run this system and I never run grease around the edge. I do maintain three filters, adn change them after every day of riding. I also keep the inside of the airbox clean. I have never had any issues with dirt or sand getting into my carb.
Answer this Question
Ryan2122 Over 3 years ago
I just purchased this product and i don't see a filter bolt. Am i missing it or does it not come with it?
MotoSport Staff
Over 3 years ago Location: P+RTLAND
The filter bolt is not included.
Answer this Question
kx85rider Over 3 years ago
Could you use a pro seal air filter gasket with this?
MotoSport Staff
Over 3 years ago Location: Tualatin
you sure can!
Answer this Question
brtayfz450 Over 4 years ago
Would you recommend the twin air kit on a yfz 450 over the modquad with k/n?
MotoSport Staff
Over 4 years ago Location: Por+land
Both kits pretty much do the same thing so either one would be a good choice.
Over 3 years ago Location: Syracuse, KS
I would go with the Twin Air foam filter because i hear K&N's let in dirt.
Answer this Question
mxkd Over 4 years ago
After cleaniing this Twin Air foam filter , will "NO Toil brand" filter oil be appropriate?
This filter comes pre-oiled, according to a previous posting, but is it acceptable to use "No Toil" foam filter oil, or any other foam filter oil, or will the best results only occur by using Twin Air foam filter oil?
MotoSport Staff
Over 4 years ago Location: Por+land
You can use No Toil oils on these filters with no problems...
Answer this Question
zrider33 Over 4 years ago
2008 rmz450?
will i need to re program the computer with this filter??
MotoSport Staff
Over 4 years ago Location: Por+land
The bike should automatically adjust for this kit. Depending on what else you have done to your bike, remapping might be needed.
Answer this Question
kdmx Over 4 years ago Location: NC
After installing this filter, will it be necessary to change the jetting on my Honda CRF150R ?(with aftermarket pipe)?
My mechanics have already spent hours re-jetting my 2007 Honda CRF150R after installing an aftermarket exhaust pipe. (the results were excellent). If I were to install this Twin Air filter, would it be necessary to re-jet the bike again?
MotoSport Staff
Over 4 years ago Location: Por+land
Yes most likely you will have to re-jet again. Since they already have it tuned for the exhaust, the changes should be very minimal for the power flow kit.
Answer this Question
kfx400racer Over 4 years ago Location: Arkansas
I have an 05 kfx 400 is this filter as good as the k&n filter?
MotoSport Staff
Over 4 years ago Location: Portland, OR
Yeah they are about the same. Personally I would run the twin air. They are cheaper and normally filter just as good.
Answer this Question
1-10 of 15

Dirt Bike

Honda

Honda CRF150R
Honda CRF150R Big Wheel
Honda CRF250R
Honda CRF250X
Honda CRF450R
Honda CRF450X
Kawasaki

Kawasaki KX250F
Kawasaki KX450F
KTM

KTM 250EXC-RFS
KTM 250SXF
KTM 250XCF
KTM 250XCFW
KTM 350EXCF
KTM 350SXF
KTM 350XCF
KTM 350XCFW
KTM 400EXC

KTM 400MXC
KTM 400SX
KTM 400XCW
KTM 450EXC
KTM 450MXC
KTM 450SMR
KTM 450SX
KTM 450SXF
KTM 450XC
KTM 450XCF
KTM 450XCW
KTM 505SXF
KTM 505XCF
KTM 520EXC
KTM 520MXC
KTM 520SX
KTM 525EXC
KTM 525MXC
KTM 525SX
KTM 525XC
KTM 530EXC
KTM 530XCW
Suzuki

Suzuki RMZ250
Suzuki RMZ450
Yamaha

Yamaha WR250F
Yamaha WR450F
Yamaha YZ250F
Yamaha YZ400F
Yamaha YZ426F
Yamaha YZ450F
* required entry

Forgot your password?