I think it all has to do with the setup. MAF needs to be like at least 6 inch back from the from the TB and the BOV should be like a foot from the MAF. mainly so when you do blow off, there is little to no turbulance in the MAF.
just guessing here
Another problem might be that since the MAF was not designed for a blow through setup, it might leak internaly from the pressure.
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No... no one stole my interior... its safely in my garage...
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