Precision Raceworks BMW N54 N55 Series Boost Reference Harness
Part number: 201-0049
Unlock reliable fuel delivery under boost with the Precision Raceworks BMW Boost Referenced Pump Activation Harness. This plug and play boost reference harness is the preferred solution for controlling auxiliary and secondary fuel pumps on turbocharged BMW N54 and N55 engines. Trusted by pump manufacturers and tuners, sold private label across the industry and widely regarded as the number one method of secondary pump control, this is the quality, proven upgrade your fast road or track BMW needs.
Searching for BMW N54 boost reference harness, BMW N55 boost reference harness, hobbs switch kit for BMW, boost activated fuel pump switch, fuel pump activation harness or auxiliary fuel pump controller for BMW 1 Series, 2 Series, 3 Series, 4 Series, M2, M3, M4? This Precision Raceworks 201-0049 kit delivers a clean OEM-style installation with zero cutting, stripping or crimping. We have used this kit ourselves and our customers consistently praise the reliability, simple fitment and consistent performance under higher boost.
Why choose this Precision Raceworks harness
- 100 percent plug and play wiring with OEM quick connect for a factory-quality install
- High quality 10 gauge oxygen free copper wire for maximum current delivery
- Pre-set 13 psi boost referenced pressure switch for precise, repeatable activation
- Pressure switch engineered for automotive use, safe in oil and air, proven for engine bay temperatures for years of reliable service
- 30 amp fuse pre-installed for protection and convenience
- Preferred by pump manufacturers and tuners, widely used worldwide
What it does
This boost referenced pump activation harness uses manifold pressure to trigger your auxiliary or secondary fuel pump exactly when additional fuel flow is required. The result is consistent fuel pressure and dependable delivery under boost, ideal for tuned N54 and N55 setups that need more fuel when on load. It is a clean, reversible, plug and play upgrade that integrates seamlessly with your BMW.
Key features and specifications
- Boost referenced: Yes
- Plug and play wiring: Yes
- Connection style: OEM quick connect
- Pressure set point for activation: 13 psi
- Fuse size pre-installed: 30 amp
- Pressure switch included often referred to as a hobbs switch but engineered for automotive oil and air exposure
- Wire: 10 gauge oxygen free copper
- Weight: 2.1 lbs
Compatibility
Designed for a wide range of BMW N54 and N55 turbo models including many popular performance platforms. Fitment includes:
- BMW 1 Series 128i 2007 to 2013 E8x
- BMW 1 Series 135i and 135is 2007 to 2013 E8x
- BMW 1 Series M135i 2012 to 2016 F2x N55
- BMW 2 Series 228i 2014 to 2017 F2x
- BMW 2 Series M235i 2014 to 2017 F2x
- BMW 3 Series 323i 2006 E9x
- BMW 3 Series 325i and 325xi 2006 to 2013 E9x
- BMW 3 Series 328i and 328ix 2007 to 2013 E9x
- BMW 3 Series 330i and 330xi 2006 E90 and E91
- BMW 3 Series 335i, 335is and 335ix 2007 to 2013 E9x N54 and N55
- BMW 3 Series 320i 2014 to 2018 F3x
- BMW 3 Series 328i and 328ix 2012 to 2015 F30, F31 and F34
- BMW 3 Series 335i and 335ix 2012 to 2015 F3x N55
- BMW 4 Series 428i 2014 to 2016 F3x
- BMW 4 Series 435i 2014 to 2016 F3x
- BMW M Series 1M 2011 to 2012 E82
- BMW M Series M2 2016 to 2018 F87
- BMW M Series M2 Competition 2019 plus F87
- BMW M Series M3 2008 to 2013 E9x
- BMW M Series M3 2015 to 2018 F80
- BMW M Series M4 2015 to 2019 F8x
- BMW X Series X1 2009 to 2015 E84
Real world reliability
Unlike typical pool or spa style hobbs switches, the included automotive pressure switch is designed to handle oil exposure and sustained engine bay heat. That means years of dependable service on hard driven N54 and N55 cars. We have fitted this kit and customer feedback backs it up. Simple install, OEM look, rock solid performance.
Fitting and support
100 percent plug and play means a clean DIY-friendly install. For professional fitting, choose Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Compatibility check
To ensure the part you order fits your vehicle, we run a compatibility check prior to dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout and we will verify fitment.
Manufactured by
Precision Raceworks
Popular search terms
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