There are others here more knowledgable than I regarding the flow differential of
the two systems. I think the K&N's are probably a little better. I think the advantage
with this "kit" is the clean and tidy installation, the O2 sensor extension and the fact
that it fits under the "bear claw" without having to crunch one of the filters. I'm glad
I waited a year or so for the problems with the kit to be worked out. Good on Ramair
for LISTENING and addressing the issues with the original. A responsive company is
worth giving a shot and these guys replaced a good amount of damaged filters.