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which means that the stock catalytic converters remain in place and there’s no need to remap the ECU
Note: The RENNtech A1 Aero Package are designed to fit the AMG GT63 (X290 -chassis)
518 LB-FT @ 2650-4800 RPM
C216 - CL 63 AMG
The next step from Akrapovič for the Porsche 911 Turbo / Turbo S is the optional titanium link pipe set without cats
RENNtech Porsche 997 Turbo ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-e-class-sedan--212---2010-2013--e-550-esr8062504 which means that the stockRENNtech Porsche 997 Turbo ECU Upgrade. Up to 523HP and 560LB FT. Gains: +50HP & 103LB FT Our proprietary Porsche ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our proprietary tuning
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