Well I installed the clean air /cowl last weekend. Problems -
1. If you wash the car with a power washer like I own the filter will get soaked to the point that water gets down into the fan assembly. This can't be good and sounds like an electrical problem about to happen when you turn the fan on in your car and hear it churning water...
2. Passenger windshield wiper has already put a scratch in the new cowl from being turned on to get water off the windshield - tried adjusting the cowl alignment thinking I did something wrong with no success - seems this area has been formed to high enabling the wiper arm to scratch the cowl as it pivots.
3. Minor complaint but non-the-less... no detailed install instructions with the exception of placing the plastic strips at both end of the filter - for a not so mechanical person they would never get the lower windshield garnish cover off without damaging it and the NSX repair manual doesn't show how to remove it. I'm sure this part isn't cheap... (Don't hold me to this I may have missed it in the manual, but I did look pretty hard through it; irregardless though some people may not have an NSX repair manual available)
What can we do to fix these issues - I now have a properly installed filter cowl with a half moon wiper blade arm scratch in it... I would also suggest some sort of cover for the filter, anyone caught in a heavy rain or washing their vehicle with a power washer or possibly even a water hose will flood out the blower assembly housing. The water run off from the windshield just can't flow around the cowl before flooding into the filter housing. I would think that part alone, the blower motor housing and electric blower, would be hundreds if not close to a thousand for repair/replacement....
At this point I am going to remove this item from my vehicle this weekend...
Product looks outstanding but needs more engineering for water runoff control and wiper blade clearances.... I will post pictures of my install/removal this weekend when I return home...