I HAD A WHITE BROTHERS POWERFILTER IN MY 300EX AND IT MADE IT RUN EXTREAMLY BETTER, AND NOW I GOT A BANSHEE WITH STOCK FILTER AND I WANT A FILTER THAT WILL GIVE IT THE BEST AIR FLOW. WHAT FILTER WOULD YOU SAY WAS THE BEST BESIDES K&N BEACAUSE I DON'T WANT A PAPER FILTER.

 

Don't know why you wouldn't want a K&N filter but if you're sure you want foam go with the UNI filter. Had them in the past. Worked great.

 

go with UNI........