I have a high mileage GSR motor, and I am thinking of putting a turbo kit on it. I will prolly be running low boost with a t4 turbo, I was just wondering if the mileage will hinder the the preformance/saftey of the car, with the turbo on it? If so and I build the motor for the turbo what are some of the prices I'm looking at just for the build and installation of the turbo???