I have installed the standard Vans SV1 and SV2 NACA air ducts and had planned to simply use the standard air vents BUT I now find that my instrument panel (from Stein) interferes with the air ducts, i.e. can't put the panel on with the air ducts in place. I presume I will have to remove the (prosealed) air ducts from the NACA cutout on the fuselage sidewall, but what can be used to replace them and still have satisfactory ventilation? The instrument panel is about 1/2 inch too low to clear the existing ducts.
A second question is: What's the best way to remove a prosealed air duct?
A second question is: What's the best way to remove a prosealed air duct?