This high-quality extension harness eliminates the need for messy wire splicing or "hacking" into your vehicle's sensitive electrical system.
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BMW G23 M440i B58 3.0L Engine Electrical Parts
- Alternator
- Battery
- ECU
- Fuse Panel
- Harness
- Ignition
- Pump
- Relays
- Sensors
- Starter
- Throttle Body
- Wire Covering
This kit allows you to maintain your factory Intake Air Temperature (IAT) readings while upgrading the pressure-sensing element to 72.5 PSI capacity.
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This harness is specifically engineered for BMW N54 owners who are upgrading to a front-facing intake manifold.
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2.5mm & 25m(75ft) in length
A two-bank onboard battery charger rated at 20-amps (10-amps per bank) for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
09-02-2026
Purchase the wires you need for your electrical bulkhead fitting here. Featuring Black FEP wire pre-cut to 24" 12 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Purchase the wires you need for your electrical bulkhead fitting here. Featuring Orange FEP wire pre-cut to 24" 12 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Purchase the wires you need for your electrical bulkhead fitting here. Featuring Black FEP wire pre-cut to 24" 18 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Purchase the wires you need for your electrical bulkhead fitting here. Featuring White FEP wire pre-cut to 24" 12 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Purchase the wires you need for your electrical bulkhead fitting here. Featuring Blue FEP wire pre-cut to 24" 12 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Purchase the wires you need for your electrical bulkhead fitting here. Featuring FEP wire pre-cut to 24" 12 Gauge wire with the appropriate terminal pre-crimped and ready to install!
Restore smooth performance and crisp throttle response to your modern BMW with this MEYLE-ORIGINAL ignition coil.
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This premium replacement knock sensor from Meyle restores critical communication to your engine management system.
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We Price Match - Give Us A Call or Chat!
Upgraded High Pressure Pump for B58
high pressure fuel pump capable of delivering fuel at 350 bar/ 35Mpa/ 5000psi
Keep your engine operating in its optimal zone with a replacement Engine Oil Level Sensor from Febi Bilstein.