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Rated by RENNtech (peak @crank): 712 HP @ 5
the Pfaff Pro Exhaust enhances the performance and acoustic signature of the McLaren 650S and 12C
The proprietary suspension kit lowers the Vantage up to 2
R3+: ECU Upgrade
Installation is done through the OBD II -port
R1 Performance Package for McLaren 650S alfa-romeo-stelvio-quadrifoglio--949---2018-2023--2-9-bi-turbo-v6-esr9101504 Rated by RENNtech (peak @crank):R1 Performance Package for the McLaren 650S. Includes RENNtech ECU Upgrade and Akrapovic Slip On Titanium Exhaust System. RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver