Along the line with the never-ending K&N versus Foam air filter, I have a different question.

Our 250EX came with a foam air filter from the factory. Would there be any advantage to switching to a Uni filter? If so, what would be the advantage?

In other words, why is the Uni foam filter a better filter than the stock Honda foam filter? [img]i/expressions/face-icon-small-confused.gif[/img]

Cory (still trying to figure these dang things out...)

 

I "think" the answer to that one is that the UNI is a multi stage filter and the stock version is single stage. Multi-stage simply means there are multiple layers of foam with varying micron ratings.

Could be wrong but that's how I undstand it.

 

The worst thing on the Hondas is that metal screen thing that goes inside the filter. The dealer says it is actually a spark arrestor, in case it backfires into the carburator. This thing is more restrictive than any filter!! I don't think it matters what filter you use as long as that thing is in there, your airflow is going to really suffer.