Well I got my tune at Performance Solutions. Definitely made the car feel snappier, a better airbox kit and 410 gears will do the trick! Mine has the shaker scoop and the airbox kit isnt the best you could have, Im told Id get another 15 HP with a better airbox. The Mustang I have already had a dealer tune so from the start I was Max Power of 273.22 Max Torque 300.46 - after the SCT tune it was 282.96 Max Power and 307.76 Max Torque. I was having a few other issues as the Stang wouldnt really pull very hard with out bogging down at higher revs, thats fixed. Its definitely a little pricey for a few more horses but I learned alot and it fixed some of my issues, for me it was worth it. I felt like Performance Solutions truly cared that I was happy and I would definitely use them again. The sandwich shop by them wasnt bad either!