40k on my Stage 3 Plus TPC Racing Turbo Kit! Porsche performance equal to their win in the Rolex 24 Hours At Daytona! The TPC team excels in all aspects of improving the performance of and maintaining the car. I have been a customer for eight years now, and I give them the highest of recommendations. I can stongly say that they have improved my car so that I experience the most–and perhaps best–when driving my Porsche. A reputation considered by many in aftermarket and motorsports industries to be true experts and professionals. Coupled with DSC Tractive, other suspension, brake, and aero enhancements…Wow! Miles of smiles!