F6 Typhoon turbo/tune query

[thefoxarea]

Hi,
I have an '06 BF typhoon....
I stupidly didn't get around to servicing it at the start of this year and managed to wreck the turbo. I had the Mr Turbo recondition the turbo as it was not completely broken. The reconditioned turbo is putting through more boost than the previous and is causing the computer in the car to shut engine power off temporarily incase the turbo blows up or sometihng!

Anywho I took it to Hi-Torque to find out what the problem was and what solution there was. They told me the stock actuator on the turbo was receiving too much boost and needed to be replaced with a variable actuator. Apparently the actuator, when over boosted, would tell the computer something's wrong and it's safety measures kicked in.

They said they could fix it with a variable actuator and a tune up for I think about $1400.

Does this sound right? I called a few other car tuning/dyno people nearby and got quoted up to $3000 and was told I'd need flash tuners etc....

I'm no expert in this so I'm hoping for any good advice!!
Please and Thank You.

Alex.