Runs Like New. I have an '04 Cayenne, not one of Proshe's better years on this vehicle. Always dreaded taking it in to the dealership. $$$ and usually other bad news. After 80,000 mostly winter miles, I was even thinking of a new car. Phenomenal work by Stellar, smoother engine, feels like more power, better gas mileage (10%), and more fun to drive than in many years. And, I always had it in for all regular maintenance checks with Porsche. Very happy with the experience and the price. No doubt, I will be back and with my other cars too.