Question. What is wrong with the stock air filter? Is it that it does not flow enough or that it is not efficient enough? Edited by: Dave Lewis

I don't know Dave. it works just fine for me.


If I ever change my stock box, I will go with the UMP air box. It's a monster paper element.

It is boring and ugly, but flows plenty of air and works as well as any, maybe better. We will see, testing on the way. SPICER