RENNtech ECU HHT Upgrade for GL 550 X164 | 402 HP / 405 LB-FT porsche-911--992---2018-present--carrera-4s---cabriolet-esr9749945 Style: Multi-Spoke Fitment: W211 -

Style: Multi-Spoke Fitment: W211 - E Finish: Brushed Size: 19" x 9

Designed for fleet and compliance use

Macan GTS (95B | MY2016-18)

Android support limited

RENNtech ECU HHT Upgrade for GL 550 X164 | 402 HP / 405 LB-FT porsche-911--992---2018-present--carrera-4s---cabriolet-esr9749945 Style: Multi-Spoke Fitment: W211 -RENNtech ECU HHT Upgrade for 164 GL 550. Up to 402HP, 405LB FT. Gains: +20HP & 14LB FT 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 reliability. RENNtech tuning software