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any more info on this? have an 08 Sierra and want to build a 4" intake. I have the tube style maf and plan to use this 4" adapter tube and card style maf or possibly the newer non-tube style maf off the newer nnbs trucks.
I'm only using it to do 4" intake bc my tube style sensor won't work. FFDP explained the pros of using the card style in one of the comments above. it is more accurate and allows you to go further horsepower wise.