If MAF contamination were a big problem, most of the Corvette and Chevy truck aftermarket air intake systems for sale would not be using K&N air filters.You can get K&N filters to fit the V but they can cause problems with the MAS getting contaminated by the oil.
I have a 2009 Platinum. Bought a volant system and the air duct is too long from the duct with the electric plug in module. The volant also has a breather hose and my '09 doesn't. Are you still 3d printing? How much? Thanks!