R44 BMW G80/G81 M3, G82/G83 M4 & G87 M2 S58 Stage 2+ Port Injection Fueling Package (720 WHP+)

Unlock the next level of performance with the R44 Stage 2+ Port Injection Fueling Package, engineered for S58-powered BMWs already running Stage 2 hardware and software. Designed to support builds targeting 720+ wheel horsepower (approximately 850+ bhp), this comprehensive kit provides the components needed to safely introduce port injection and ethanol capability to your G8X platform. Whether you’re looking to push the limits of a hybrid turbo setup or prep for full-frame turbo upgrades, this package ensures precise fuel delivery, advanced control, and high ethanol compatibility. The core of the system features a Precision Raceworks port injection kit — available for both factory and CSF intake manifolds — paired with Injector Dynamics high-flow fuel injectors and the powerful MOTIV ReFlex+ standalone controller. To support ethanol blends like E50–E85, the kit also includes a genuine Continental ethanol content sensor, Precision Raceworks AN fittings, and a plug-and-play ReFlex+ installation harness by Mike Ball, available for both LHD and RHD vehicles. This package transforms your S58 engine into a fully flex-fuel capable, high-output system ready for serious road and track use. Key Features: Designed for G8X S58 BMWs already running Stage 2 Supports 720+ WHP with appropriate tuning and turbos Enables high-precision port fuel injection Ethanol-compatible (E30–E85 blends) with real-time monitoring Plug-and-play harness options for LHD and RHD High-quality components from trusted performance brands What’s Included: Precision Raceworks S58 Port Injection Kit (Standard or CSF version) Injector Dynamics Fuel Injectors for S58/B58 MOTIV ReFlex+ Control Unit Continental Ethanol Content Sensor Precision Raceworks 5/16” Ethanol 360° AN Fittings Mike Ball Plug & Play ReFlex+ Installation Harness (LHD or RHD) Compatibility: BMW G87 M2 Coupe BMW G80 M3 Saloon BMW G81 M3 Touring BMW G82 M4 Coupe BMW G83 M4 Convertible For use on vehicles already equipped with Stage 2 tuning and suitable supporting mods.