R1 Performance Package for Bentley Continental GT mercedes-benz-s-class--221---2007-2013--s-63-amg-esr7422703 +49 HP / +88 LB-FT

+49 HP / +88 LB-FT

ECU Upgrade: Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file

8L) ECU Upgrade

93+ Octane gasoline is mandatory with this Performance Upgrade

The RENNtech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG

R1 Performance Package for Bentley Continental GT mercedes-benz-s-class--221---2007-2013--s-63-amg-esr7422703 +49 HP / +88 LB-FTR1 Performance Package for the Bentley Continental GT. Includes RENNtech ECU Upgrade and RENNtech Stainless Steel Sport Muffler. Our Bentley performance package 1 features our proprietary ECU upgrade and performance stainless steel exhaust. These two components truly unleash the true potential lurking underneath your Bentleys refined exterior. Our Bentley ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch