RENNtech Porsche 997.2 Turbo (3.8L) ECU Upgrade (500 HP / 480 LB-FT) bmw-7-series--e66---2001-2008--esr3332914 The R1 performance package is

The R1 performance package is the perfect entry level performance upgrade for the Mercedes-Benz 190 - AMG GT-S

Made from titanium—with some parts cast in Akrapovič’s own foundry—it has bigger pipes than the stock exhaust

CLASS S LONG (W 221) 500 [ONLY USA] [2 Filters Required] (HP: 387 | Year: 05 >)

Rated by Mercedes-Benz:                        463 HP @ 5

Owners can also plan and budget for additional modifications

RENNtech Porsche 997.2 Turbo (3.8L) ECU Upgrade (500 HP / 480 LB-FT) bmw-7-series--e66---2001-2008--esr3332914 The R1 performance package isRENNtech Porsche 997. 2 Turbo (3. 8L) ECU Upgrade. Up to 550HP and 575LB FT. Gains: +50HP & +95LB 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