Quote:
Originally Posted by 4corners
I've used K&N filters since i rode motorcycles as a kid. Malcolm Smith who started K&N lived by us. He had one on his lawnmower.
I'm hesitating to buy one for my M3 because it looks like other companies have put more time into developing a specific filter. Is K&N just making the same old filter for everything is the question.
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It is the same old filter for everything. But it works