We found in our exhaust development and testing of the 991.2 GT3 and RS that they are intake limited both through the factory airfilter box and through the 82mm Throttle body. A bit of history. The Bosch 82mm Throttle body is the largest Bosch...

NOTICE: Tuning your ECU will be visible to Porsche and can potentially void your factory or aftermarket warranty.    EMISSIONS   This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results) to verify that...