RENNtech ECU Upgrade | R231 | SL 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 porsche-911--991-1---2011-2016--turbo-esr5301476 CLASS E CABRIOLET (A 207)

CLASS E CABRIOLET (A 207) 500 V8 [2 Filters Required] (HP: 388 | Year: 10 > )

Whether it’s a small deviation in the weave layup or a slight inconsistency in the finish

AMG Customer Logo on Right Sleeve

The maximum power number reached with the RENNtech ECU+ Upgrade for the C205 - C 63 AMG Coupe is up to 601 HP and 657 LB-FT

these components utilize factory mounting locations within the rocker panels and a few additional hard attachments are required underneath the rear fascia

RENNtech ECU Upgrade | R231 | SL 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 porsche-911--991-1---2011-2016--turbo-esr5301476 CLASS E CABRIOLET (A 207)ECU Upgrade 500HP 625LB FT Gains: +52HP +87LB FT Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or