2007 400ex
#1
#2
2007 400ex
The biggest thing is that you need to get rid of that restrictive filter insert that comes on stock Hondas!!!
UNI makes great filters, but the inser that they supply has a weak plastic collar. It wil eventually warp, and can then leak air.
A better choice is the ProDesign (ProFlow) adapter and foam filter (made by UNI). It is a real slick setup, and your clamp band is supported by an aluminum collar. And, I also highly recommend the EHS Racing airbox lid with an Outerwears cover!
I learned the hard way the K&N's pass fine dirt particles! I say skip this one and increase you engine life.
And of course you will need to rejet........
UNI makes great filters, but the inser that they supply has a weak plastic collar. It wil eventually warp, and can then leak air.
A better choice is the ProDesign (ProFlow) adapter and foam filter (made by UNI). It is a real slick setup, and your clamp band is supported by an aluminum collar. And, I also highly recommend the EHS Racing airbox lid with an Outerwears cover!
I learned the hard way the K&N's pass fine dirt particles! I say skip this one and increase you engine life.
And of course you will need to rejet........
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09-23-2015 06:23 AM
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