Originally Posted by AMDanBailer

Congratulations! You're going to love the 2013 GT, the new coyote motor is unbelievable. They come equipped with a 420 (to the crank) 302 cubic engine, 5.0L motor! To the wheels, that will put you in the mid 300 wheel horsepower range.

With some basic bolt on's and a Bama custom tune, you're 5.0 will be sitting right around 410-420 to the wheels! If you're looking to be around the 550RWHP mark, your going to need FI or a decent shot of nitrous.

We can definitely point you in the right direction, we carry all of the parts to turn your GT into an entirely new animal! Give my CS team a call and they'll gladly point you in the right direction. Our Mustang Experts are here Monday-Friday from 9AM-9PM EST and Saturdays from 9AM-5:30PM EST. If you want to hit them up, their number is 866.727.1266. I can also have one of them call you directly.

http://www.americanmuscle.com/

-Dan

Originally Posted by awbreyjd

Most of the kits you can buy these days, (unless you go with a tuner kit), will come with everything you need to run reliably at the power level you are looking for. I went with the Vortech kit and spent about what you are looking to spend and have never looked back.