I have one in my SCTE and it has plenty of power. The truck is relatively new and I don't have a lot of run time on it but I'm happy with it. It has a lot more torque and is much smoother than the Castle 5700 4 pole in my T4. The Castle is a great motor but the Tekin feels like it's going to shred the tires off the rims when launched from a dead stop. It pulls hard all the way up to it's RPM limit as long as the gearing is right.
I should note that initially I was not that impressed, however I discovered that I had a cold solder joint on one of the motor tabs. Once I resoldered it the difference was night and day. Great motor, not cheap but it's well made.