Cutting out the backfire screen on filter cage

8 replies to this topic
  • CaptainKnobby

Posted June 20, 2007 - 04:43 PM


Has anyone cut out the screen on their airfilter cage. Someone told me the bike would breath alot better if you did.>>>>And we all know "the better they breath the better they will run" All though someone did say the screen protects the filter from backfire and possibly a fire. But I have seen Twin air filter cages that you can buy for 06 450fs and they dont have a screen on them and they cost $100.00:eek: so why dont just cut out the stock screen and save your money and still have the same purpose.

  • 642MX

Posted June 20, 2007 - 05:42 PM


Don't waste your time. The foam filter is more restrictive than the back-fire screen.

  • grayracer513

Posted June 20, 2007 - 05:43 PM



  • sauergood

Posted June 20, 2007 - 05:54 PM


my crf 450 x filter was a little crispy when iwent to change it once i have decided that if not for the screen it could of been bad so ileave it alone plus it runs great anyways

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  • ncmountainman

Posted June 21, 2007 - 06:50 AM


the 03-05 yz 450 cage can be replaced by the same yr yz 250 smoker cage which has no screen for under $30 (which is worth it if you've ever tried to get all those little wires out) but you'll need to run a backfire resistant filter;like the one twinair uses in its kit. (replacements are available for around another $30) so you can save $40:thumbsup: i'm not sure if this is possible with the newer'll have to check part #'s.

  • grayracer513

Posted June 21, 2007 - 07:05 AM


It is possible with the later bikes, but it's still a complete waste of time and money.

  • King_Air

Posted June 21, 2007 - 07:36 AM


It is possible with the later bikes, but it's still a complete waste of time and money.

I agree. After searching on here a reading a lot of posts, I have concluded that the filter itself is more restrictive than the screen. My $0.02.

  • CaptainKnobby

Posted June 21, 2007 - 06:33 PM


I just stay with what ive got and not fool with it.

  • ncmountainman

Posted June 22, 2007 - 06:35 AM


if anything i noticed a slight bottom end loss when i tried it,the screen also helps me sleep better at night; its screens for me:thumbsup:

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