I am interested in a Performance tune for my new ST and other Bolt-on Performance parts, such as exhaust, intercooler, intake and downpipes. My goal is 500 WHP or more and able to 0-60 in 4 seconds or better and 12s in the 1/4. I have researched the forum and youtube to see if adding a Tune before any of the bolt-ons is a bad Idea? I understand that adding the bolt-on parts I listed does not require a tune. I am wondering if that matters and if I could benefit more from waiting to do the tune last? Or if I can start with a tune, like a ZFG 93 or E50 tune? I am new to the tune performance. I grew up with Carburetors. Just wondering what you guys have done and results.