Are the skinny injectors ok to be used on an 03 GT with the stock MAF?? The ford advertisement says they are best used with recalibrated MAF sensors and not stock ones. I am putting on 39lb cobra skinny injectors. They are black with blue O-rings. I know its a big injector, but the shop around here says tuning it wont be a problem.

 

Im pretty sure most kits come with 42lb injectors. Id get those instead of 39's.

 

i think the tune will cover that