Is the Moose Racing air filter any good?
 

http://cgi.ebay.com/ebaymotors/MOOSE...#ht_2745wt_990


Better than stock?

Or should I spend the extra $10 on the Uni

I think the KLX could outrun a moose even with the stock filter.

Woooooooooow

Through the years I've found 90% of the time the oem filter is a better filter, ie, finer foam media. Aftermarket stuff seems to make the trade for flow. It's your call, you have options.