I have been a member of camaro/trans am boards for 8 years now, and the Rear mount STS kit has been a debated topic and beaten to death... with it now convincing a lot of sceptics that it is a great system! It is proven, and has been tested many times over. With a sysmple 3-=60 hp increase, i think that the pcm can learn to recognize what banks it needs to adjust and by how much. There seems to be quite a few who have a s/c with no additional tuning. So lets think about the difference, A s/c forces air utilizing a belt drive as where a t/c utilizes exhaust flow... Same concept, different method, so i sincerely doubt there would be a need for a custom tune. Granted there are always precaustions needing to be taken when increasing the air intake. One is definetely a sparkplug change to be able to handle to mixture/heat/ignition, and two could possibly be a larger fuel injector, (i will be looking more into this).

So From previous posts in this thread and previous threads, the main concerns are the following Issues;
1) Worried that at lowspeed/rpm rock crawling/off roading the turbo will now spool up and provode any/little power
2) lag time as far as simple city driving
3) clearly acceleration.
4)weight/height/bodyroll seems to be a concern
5)rear mount system power gains
6) tranny life
7)cost
any more? so we can start discussing them and their solutions