Skipper, If you really want to make a hot selling upgrade for the DeLorean, have your stainless fabricator make an air filter box out of stainless that is basically shaped like the OEM but will hold the closest K&N filter available. Make it with twist lock stainless latches to hold it closed. I thought about this before, but I think it would be difficult to make the round lower portion of the air box out of sheet metal and make it so that it would fit tight without leaking. I think it would be tricky to make the flange perfectly round. The next time I see my stainless guy, (I'm in the restaurant equipment business) I'll show him my air box and ask him what it would cost to make several out of stainless. That is unless you beat me to it. But relax, I'm incredibly slow at such things. By the way, can anyone say what the closest sizes of the K&N air filters are that would be appropriate to consider using? Such as what is the next few sizes too large and too small? I think I would rather go a speck larger just for general principle's sake. Walt Tampa, FL