Since I got the truck back it runs better and more power on the low end it needs 33's though. I was able to determine that it has a gtp38r 1.0 ar with 3.5" dp stock exhaust ais intake unknown hpop/injectors. It is very laggy till 2100-2200 rpm then it starts to light. I have driven stock 7.3s which are slugs compared to mine and 6.0s that were stock do not stack up in power comparison. The idle is rompy it needs better fuel pressure and supply demand tuning. It seems way more powerful than a stock set up or just a drop in turbo. Going down the highway the turbo constantly whines I think there is a lot of untapped potential.