Hi,
I've found your thread an interesting read, although I have an older 4/4 with carb'ed CVH, which I have replaced the restrictive standard pancake and box with a Pipercross free flow, looks good, intake roar is nearly as loud as the exhaust! But the reason for me chipping in is, the old system took air from an opening next to the rad, about 2" dia, and ducted in. Is this feasible on your newer cars?
rgds
