Got my heat shield today thanks to davemk4

Just notice the maf and the pipercross filter i have is 3.25" and the hole on the heat shield is 3"... all the heat shield iv lookeed for that fit mk4s come with 3" hole.. so was thinking if i use a silicone pipe from the maf through the heat shield and filter will it be ok?? Or will an alloy pipe be better dont want silicone pipe to get super hot
