The k/n .
Otherwise there all knock offs.
Look in the carb throat after a race that will tell all the story .
Not True. EC's filters were out before K&N, in fact im pretty sure EC told that
That's the filters we always used
Yes Ec. Too Quote .
Is this the whole story and all the trix? No, it's about 2% out of
one hundred. I just dont know how to give you all the possible combinations or mistakes and results that I have made. This would take a lifetime .
But just maybe I have turned on a few lights and given you a
Working platform to start with. If f have done that then this has been
two weeks of time well spent.
https://www.eccarburetors.com/AFR90-Air-Filter-4500-x-4000-w-275-Flange_p_471.htmlOk Jamie , if they still make them then his are the ones to buy.
K/N is a knock off still the next best thing.