What is the outside diameter of the opening on V8 mass air flow sensors?

 

How exact of a measurement do you want? IIRC its 2 7/8" A 3" ID tube works great for a cold air inlet, in case thats what you are up to.

 

Thats exatly what im up to thanks

 

I'm currently using.. I think its ABS plastic tubing. Its pretty thick stuff unfortunately, had a hard time finding a clamp. I had to use part of a rubber ring that comes on the early TA air inlet setup to take up some space. At first I had used some stuff that is for landscaping/drainage, I think its polyethelene, its black with what appeared to be a white plastic coating on the outside. Over time it melted slightly and deformed, and was not sealing properly anymore. Thats why I went with the thicker stuff, it has not given me any problems.
Having an exhaust pipe or even stainless bent or hopefully just cut to size would work too, probably look better but heavier.

 

I plan on using exhaust pipe and having it mandrel bent. If there is exhaust pipe that is 3" ID.