The Precision Raceworks B58 Port Injection kit with flex fuel compatibility is a necessity to safely and sufficiently support the power levels anyone needing additional fueling. This kit is capable of providing supplemental fueling to all BMW's equipped with B58 Gen 1 engine (see fitment guide for full details).

The complete kit integrates seamlessly into your car like it left from the factory with it installed; you can barely even see the kit once the car is assembled! This kit includes everything needed to add multi-port injection and is 100% e85 compliant. We include new genuine Bosch Motorsport injectors which are flow matched both static and dynamic by an outside lab to industry leading requirements. A Detailed certificate of conformance and genuine Bosch product certificate is included with each kit giving you all flow data needed for optimal tuning.

Don’t be tricked into thinking all port injection kits are equal, the Precision Raceworks is the only port injection kit currently where all 6 injectors have even fuel distribution for each cylinder. Additionally this kit features 750cc* injectors standard (this flow rate is based on industry injector flow test pressure of 43.5psi) at 72psi these injectors flow 1000cc. What this means is our kit is capable of supporting builds from 400whp up to 1,000whp out of the box.

Simply pick up this kit and pair it with your favorite injector controller and you are ready to go! Our favorite injector controller is the Split Second AIC1-6 Port Injection Controller which is compatible with all B58 cars and is the industry standard which is why we offer it with this kit.

If you have a Toyota Supra or a Z4 M40i with a B58TU engine, you will need the Gen 2 Precision Raceworks BMW Toyota B58 G29 A90 Gen 2 Port Injection Kit (Z4 M40i & Supra) instead due to the head design.

(Aftermarket 2 piece charge pipe required)

*Actual flow rate may vary, as advertised flow rate is common average.

Please Note: The factory charge pipe will not work with this kit. We recommend the Masata BMW B58 F20 F30 Aluminium Chargepipe (M140i, M240i, 340i & 440i) as a replacement.

Specifications

• Weight: 3.5lbs
• Engine Compatibility: All B58 Gen 1 engines (see fitment guide for full details)
• Injector brand: Genuine Bosch Motorsports
• Advertised Flow - 750cc: 750cc @ 43.5psi , 1050cc @ 72.5psi 
• Advertised Flow - 950cc: 950cc @ 43.5psi, 1226cc @72.5psi
• Fuel Compatibility: All known fuels including full E85 compatibility
• Flow Matched: 2% or better (250% more accurate than off the shelf injectors)
• Connection Type: EV6 (Called US Car Connector) works with AIC and JB4 Controller
• Hardware included: Yes full stainless hardware included
• Gasket Type: OEM Spec manifold gaskets (commonly found in BMW N54 applications)
• Fuel Distribution Pattern: Diagonal equal distribution across all cylinders
• Fuel Line: Smooth bore PTFE with stainless braid and nylon braid safe for all fuel types

• 1-Series F20 F21 M140i(x) B58 (2016-2019)
• 2-Series F22 F23 M240i(x) B58 (2017-2020)
• 3-Series F30 F31 F34 340i(x) B58 (2016-2017)
• 3-Series G20 G21 M340i(x) B58 (2017+)
• 4-Series F32 F33 F36 440i(x) B58 (2016-2017)
• 4-Series G22 G23 M440i(x) B58 (2017+)
• 5-Series G30 G31 540i(x) B58 (2017-2020)
• 6-Series G32 640i(x) B58 (2017-2019)
• 7-Series G11 G12 540i(x) B58 (2016-2020)
• 8-Series G14 G15 G16 840i(x) B58 (2020)
• X3 G01 X3 M40ix B58 (2017-2020)
  
• X4 G02 X4 M40ix B58 (2018-2020)
• X5 G05 X5 40i(x) B58 (2018-2020)
• X6 G06 X6 40i(x) B58 (2019-2020)
• X7 G07 X7 40ix B58 (2019-2020)

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your license plate or the last 7 digits of your VIN. Simply enter your car details prior to checkout.