question about tunes

[epowers777]

I'm trying to talk my buddy into going with php. He wants a custom tune for his truck that doesn't mess with the transmission . He got a torque converter and an upgraded valve body. He has a chip called the super chip that has tow safe mode but its messing up his shifting. He wants a one time deal that flashes his pcm and that's it no display or anything. He's picky and has money. What do our suggest?
He will have 4 inch exhaust , trailer brake on the turbo, gauges.
It's an 02 and we live in California so we will have to smog he toes a 28 ft 5th wheel.