Picked up some goodies today at NAPA and remember hearing about these heavy duty racing filters. I'm not racing anybody, but figure they must be high quality. They do say "Caution: Not intended for street use" on the box. Why is this a problem? What's good for the drag strip isn't always good for a grocery getter. They are sort of the standard WIX filter we all know and love, but on steroids.

Any reason us mere mortals might run into trouble with these, other than our wallet? They want $16 for them. Higher flow = Good. Though likely means less filtering? Is there a bypass valve deletion on this filter?