Would injectors help off the bat if i get them or do i need a certain amount of mods before they are useful? I have Alta CAI, 15 % pulley and one ball, soon to get MTH. Would they help

 

Once you get the software, yes!

 

The stock mini runs rich. Even with lots of mods, the mini runs rich. Bigger injectors are probably indicated when there is a chance of running lean, i.e 19% pulley or very high revving software. Otherwise, you're just flooding the car with more fuel, which may end up losing power.

 

Get some logging software, and look at injector duty cycle. If you're getting up towards 100%, the car is asking for more gas than the injectors can deliver. You can play games with the fuel pressure regulator (higher pressure=more gas per unit time), or bump the injector size up. But to really get the benefits at WOT, you need software to take account of the size difference, and use it properly.

Matt