upgrades required??

I have a couple of parts for my girls stang and need to know if I need to upgrade the fuel injectors and MAF or not. I have a trick flow upper plenium and a 75 MM throttle body. This will go onto a 03 mustang GT with a CAI, underdrive pullies, manifold back 2.5 high flow exhaust system, and a SCT computer tune. Thanks for any help.

I dont see why you would need to upgrade injectors or maf. Unless your aftermarket TB is much larger than the maf, you want those two items to be about the same size.