you're actually best spending your time getting a colder air source directed into the filter. I think if you can do that with a stock box, you will get better results than with: just a heat shield and not routing outside air into the box. or you could do both (shield and home made ram air). I had a set up that took in cold air through the fender from the lower front grill (you have a cut a bit)..but I noticed my filter was getting slightly damp after a few drives in heavy rain falls. It was routing air really well, but unfortunately it took the rain along with it, especially at faster highway speeds. I was worried about water in the intake, so I took the whole thing off.
