99RCSB6.0

Does anyone know how i can block off the stock air box diffuser ?? 06 6.6 plastic box . The reason i ask this , is i got the trueflow xdi intake and i want to take that diffuser off . any replies would be helpful !!!!!

1slow01Z71

iTrader: (36)

Youre talking about the piece that says 6.6 duramax right on the top of the motor right? If so its just a torx screw that holds it in, remove that and you can pop it right out. Most people plug it with a freeze plug. I havent removed mine because it doesnt really do anything, no louder turbo whistle, just shows off the turbo better.

ONEBAD383STROKER

iTrader: (5)

I put one of those temp rubber freeze plugs in mine. It was in the "help" section. 2" I believe.