I turboed my 6.9 and my 7.3 with stock ats turbo and never added studs to the 6.9 and never had any issues. I recently upped the anny and installed stage 1 injectors and a 110 pump and the bigger 3582 turbo on the 7.3 about 3 years ago without studding and havent had issues with it either. Added studs this year along with the intercooler. Although I would always recommend slapping new head gasket kit on when doing the studs, ive found that you dont need the studs for the amount of boost you will see even with bigger turbo, pump, and injectors. But as we all know, if the gasket is disturbed in any way(studs) it needs replaced. The turbo will improve the ability to keep up with traffic and when your not laying into it can help with fuel mileage. I also tow heavy quite frequently. But at the same time, to each their own and experiences may differ. If you got the turbo and everything with it for installation id say put it on or make a bit of coin back by selling it. Just my opinion