I am going to give Texas Speed a shot at tuning my TBSS. I don't doubt that they will do well with the ECM, but it's the TCM that I worry about. No feed back means I am taking a chance, but their price is great at $250.

Anyone familiar with them or their Transmission tuning?

 

They did a good job on the tune for my old 99'. Power wise was great, the trans part was fine even though I would have liked a little firmer shifts but it was fine other wise.

 

they did a dyno tune on my brothers stock vortec max. Power went from 262rwhp stock to 288 after tuning.