Im in the process of replacing the stock intake box with my own filter set up. But the car is not at my house, so i need to know what the diameter of the pipe comming out of the maf is so i can mate it up to my k&n cone filter i had laying around. ill need to buy a reducer but i need to know what the inlet size is. anyone have the same situation happen and build their own or know what i need?

What is this "Mass" airflow meter you speak of? :P

The AFM has a diameter of ~3". It will be a tight fit, so I'd suggest mating it using a silicon coupler.

sorry thats what i guess i was trying to say. and yes i believe that you are correct xatlas0, so a 3'' coupler will def work then? can i use one that i could get from home depot or somewhere like auto zone?