I was hoping someone could skim this and see if this tune is decent or safe. Someone referred to it as a "Kill Tune" and I'm leery of driving the car now.

Basically, I broke the intermediate shaft in my stock transmission and went with a built one and torque converter. My regular tuner wasn't comfortable tuning a built auto because of the different fluid volumes and pressures with the firm shifts and really didn't want to break it. I asked in a facebook group and a remote tuner reached out to me.

We went through the first few revisions before it was running so lean that I lifted a head. It went pig rich, then dead lean. Replaced head gaskets, put in 2116LSR lifters, 3/8 pushrods, and whatever came with it while it was apart.

A few more revisions after rebuilding it, I realized that my car wasn't showing boost. Not sure why that wasn't noticed in the first log I sent to him. I had my MAP sensor plugged into the flex fuel sensor backwards. Got that fixed and he sent me another revision.

A few tweaks and the car was running alright. A few things I took notice of were:

Stock bottom end LSA spinning to 7,540 RPM (Which I'm not comfortable with despite having a Melling 10355HV pump)
ST Fuel trims dipping down to -28.1

While working through that, my brand new built transmission failed. The car wouldn't move until I revved to about 3,500-4,000 RPM.

Limped it home and drained the fluid, it was burned, brown/black and glittery. Reached out to the builder and he wanted to see the tune. He said something about torque management being off and how that's a nuke for transmissions, so I asked the tuner. He denied it being off (I attached a screenshot of transmission) but I'm not very sure since I'm being told conflicting information.

The valve body was clogged, clutches were wasted, the drum overheated. He went through it, cleaned it, replaced what got ruined and shipped it back to me for next to nothing.

I trust the builder 100 percent. I like the tuner, but I'm not sure if I can trust him to make this right.

I'm not sure I want to proceed with a "Kill Tune" in my car and am looking elsewhere for insight or guidance.

Also, it's not in my nature to **** all over anyone publicly. I don't intend on dragging people down through social media or tarnishing names. I acknowledge that mistakes happen and this could be one of those things. It's why I intentionally left names out of the post.

The car is:

2013 CTS-V
WCCH heads
BTR Stage 3 PDS cam
Custom CAI
Melling oil pump
IWIS timing chain
2116LSR Lifters
BTR Pushrods
upgraded trunion rocker arms (CHE I think)
Kong Lid
Weapon-X HX

Again, my intention is not to smear anyone. My intention is to get my car fixed and avoid social media drama.