*Yawns* ............people these days.....
Like what most people would say, Get it tuned by whom ever you like, your car and your money at the end of the day. No one in this world can guarantee you something 100% when it comes to this. More power, less Life span on the car... you make your own decision. Just make sure you tell the tuner what you want, and not just go.. " i want BIG BIG BIG horsepower!" sure the tuner will give you what you want but how long will it last?
I have a Wolf ecu and been running it for ahwile, no problems. Steve thomas Tuned it.
this is my car, others may be a completely different story. If you want an opinion, get from someone who has them, not just "my mate has one, my dad has one, my mum has one, and it was shit"