Before I get the Z tuned here in March I am going to upgrade the air intake. I am getting a port and polished throttle body to ~79mm. Along with that I will be purchasing a 3in maf housing. To complete my setup I am going to need a 3in intake tube. My question to my fellow Z owner's is where the heck can I go about purchasing this 3 inch intake tube?? Thanks guys

 

I'm pretty sure any muffler shop can make you one.

 

If you dont increase the entire inside diameter plus the TB plate, its not going to make a difference. You are only opening the front at which it gets restricted again at the plate.