Carbahn Stage 2 Performance Controller & Software – Fits BMW G8X M3/M4 Software & Warranty Options:Stage 2 Performance Controller & Software With Warranty +$2250 2014-2020 Porsche 991 GT3 RS

2014-2020 Porsche 991 GT3 RS

Left carbon fiber side skirt extension

Confirm mirror style compatibility before installation

Integrated diffuser lenses improve daytime visibility

Carbahn Stage 2 Performance Controller & Software – Fits BMW G8X M3/M4 Software & Warranty Options:Stage 2 Performance Controller & Software With Warranty +$2250 2014-2020 Porsche 991 GT3 RSUpgrade the performance of your 2021 2023 BMW G80 M3, G82 M4, or G83 M4 with the Carbahn Stage 2 Performance Controller and Software. Designed for G8X Competition models, this plug and play performance controller increases boost pressure to help deliver stronger horsepower and torque output. The Stage 2 controller features selectable maps through a Bluetooth smartphone app, allowing drivers to access performance settings through supported Apple App