has anyone dealt with these guys recently since john passed away?

more particularly has anyone here dealt with them on tunning issues? they are trying to work out a deal on tunning and after the many issues i've had with tpis and the rest not pulling their weight i'm curious what these guys can do. talking about dropping the car off with them but i'm still not sure.

any comments or suggestions on them?

 

I had good luck with their tune on my LS1.

What TPIS issues are you referring to?

 

i've had alot of bad luck with them with many issues and a few of their hard parts like a improperly ground cam, completely poor casting on the miniram and terrible programming skills just to name a few.

just looking for info on lingenfelter so lets leave it to that please.