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2001 996 No Power Increase


Vehicle Information: Model: 996 C2; Year: 2001; Body Type: Cabriolet; Total Mileage: 57,000;

I upgraded my totally stock 996 with B&B Headers and Muffler, Evo Air Intake, and an Upsolute ECU Upgrade. The car was put on the dyno before and after the modifications. I actually "lost" 2 horsepower! The shop that installed the mods other than the computer upgrade had no explanation. I had that done while living in Atlanta. I now live in the Orlando area and am using a local shop for maintenance. They told me the Porsche engines are built at such a high level of high performance from the factory that these upgrades don't offer much of a gain. I find that hard to believe. Is it possible Upsolute accidently "detuned" my computer? The car drives great and performs well but I certainly expected to get better performance for all the money spent. Any ideas??? THX

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