I'm not positive but, I thought I saw in one of those ads where they were asking $999 per unit. Did anyone else see that? If that be the case I think that's a little high. I mean ya have to do the math and see if it's possible to recover your expense.I'm thinking you would eventually see this at Ace hardware or maybe even wallyworld.Mass production to where everyone had one or a sale to a big car co.
Proven is one thing, calibrated for each engine type is another.
This is not a simple filter you are installing and even if it were you have to remember that it's not a standard part that comes automatically with the engine and therefore requires some adjustment for proper and optimum performance.