R44 BMW G80/G81 M3, G82/G83 M4 & G87 M2 S58 Stage 2+ Port Injection Fueling Package (720 WHP+)
Description
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.
Will it fit my car?
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
Shipping
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Returns/Warranty
Eligibility:
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Return & Refund Process:
To initiate a return, please contact the vendor you purchased the product from with your order number and reason for return. Their team will provide further instructions.