toner123

For Sam to provide you with a tune it must be the turn key kit. The turn key kit is the same thing as the tuner one except the turnkey comes with the fuel pump, larger injectors, and a tune from GTM aka Sam.

Now to the OP, with either kit GTM SC or TT you can't go wrong. Like others said you have more growth protential with the TT kit. Now keep in mind yes the price for the SC is a little less then the TT kit but the cost of installation is higher for the TT kit. Something for you to factor in so there are no suprises. Also with the TT kit you have to factor in some supporting mods such as possibly high flow cats or test pipes, a better exhaust system, and a boost controller. Now some others will till you that this stuff is not required but I highly recomend it and I treated it as a requirement. I did not mention the oil cooler because I think that is a requirement fr both kits. Also to add the installation time on the SC kit is a lot less then the installation time on the TT kit. Look at your options and set a goal. Don't just look at today but think of the future as to what you would like to do with the car. I say if you can be contampt and happy with staying around 450 hp then go with the SC. But if you think in a few years or somewhere else down the line you will want more then go with the TT. You will find that both will do the job well but which kit you get rests on your goals and what you desire in hp/tq. I hope this helps
Frank