Re: new kat dyno z31 turbo 8psi by ICEMAN.KCMO » Tue 9:54 pm That T3 is good to around 250Hp. I had the same turbo on a Dodge Daytona back in the day. Same turbo. I would go with this turbo aver the T25 any day of the week. T25 chokes power on top end.. Steve.