I'm a noob with a 2012 GT with Brembo package. All I've done so far is put on a Borla cat back ATAK exhaust, and it is sweet. About to lower with Eibach kit. Trying to decide between engine bolt-ons for a little more hp or changing gears to 3.73 from 3.31. Any thoughts on what will give me the most bang for my buck at this point? I'll do it all eventually, but I'm tempted to go with gears for now to get a little more acceleration off the line and increase the grin factor. Then move on to CAI and tune.