tguaturbo

these look to be for NA 911s not TT. Whew had me nervous for a moment.

Quadcammer

They say that, but i believe they work on the turbos.

The sensor you see screws into the black plastic tube. the tube does not wear or have anything electronic in it, so there is no need to replace it

o7silverturbo

Just have the car tuned for maf-less and dont look back

T10Chris

I've got a pair of 997TT MAF sensors I would sell for a good price. Sensor portion only, not the tube portion they bolt into. They've been sitting for a while, but I don't think these go bad by sitting in a box on a shelf.