Delivery, customs and taxes
Know the landed cost before you order
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For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Lead times and urgent orders
Check timing before you commit
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Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
High value order, handled personally
We confirm build spec, lead time and delivery arrangements with you before any money moves. Prefer to talk it through first?
684 whp petrol, 575 whp E85 with a full supporting build and calibration
Tuning suites
EcuTek, MHD, Bootmod3
Warranty
Limited lifetime against manufacturing defects
Summary
The Nostrum BMW N55 1170-250 Gauntlet HPFP Kit is the part you fit when the factory high pressure fuel pump has become the thing holding your map back. Nostrum rates it at 70% more flow than the stock N55 pump, and 4% more than their earlier Big Bore, using a cast stainless-steel Gauntlet pump body developed for the BMW 3.0L N55. The install is plug and play with zero hardware modification and fully reversible when the car moves on, though a calibration is still needed to use the extra volume. If your N55 is on an aggressive map, drinking ethanol blends or about to see a bigger turbo, this is what takes fuel supply off the list of limits.
Best For
Tuned N55 cars where rail pressure falls away at the top of the rev range under load.
Cars moving onto E85 or ethanol blends, which need far more volume than petrol.
Builds adding a larger turbo, where fuel needs sorting before boost goes up.
Projects that may need to go back to standard fuel hardware later.
Where The Stock N55 Pump Runs Out
The N55 runs a single cam-driven pump feeding the direct injection rail, sized for the factory power level. Push boost or switch to ethanol and it reaches its volume limit before the injectors do, so commanded rail pressure sags exactly when the engine is asking for the most fuel. Backing the tune off is one answer; fitting a bigger pump is the one that lets the rest of the hardware keep working. The Gauntlet body is Nostrum's newer cast stainless design and sits above the Big Bore in their N55 range.
What Comes In The Box
High-capacity high pressure fuel pump
Low-pressure inlet tube with teflon internals
Stainless-steel high-pressure outlet tube
Pump adaptation flange and flange alignment tool
Electrical harness adapter
Installation hardware, including the ultra-low-profile knock sensor bolt
Full-colour installation guide and pump flow test data sheet
Key Specs
Manufacturer: Nostrum High Performance
Product Type: single high pressure fuel pump kit
SKU: H086-2077
Vehicle Application: BMW 3.0L N55, F-chassis
Flow capacity: 70% over the stock pump
Fitment type: vehicle-specific
Fuel: petrol, E85 and intermediate blends
Calibration: required
Fitment And Setup Checks
Match your chassis code and year to the table below, and remember the pump is only half the job: a calibration from EcuTek, MHD or Bootmod3 has to command the extra volume. Injectors are a separate purchase, so many N55 cars pair this pump with the Stage 2 DI injectors, or buy both as the N55 Stage 2 Gauntlet bundle. Running varying ethanol content also calls for a flex fuel sensor.
Vehicle Fitment
Years
Chassis
Model
2011-2015
F30/F31
335i
2013-2016
F32/F33/F36
435i
2013-2016
F22/F23
M235i
2015-2016
F20/F21
M135i LCI
2012-2015
F20/F21
M135i
2016-2018
F87
M2 (Non-Competition)
2013-2017
F10/F11/F07
535i
2013-2017
F25/F26
X3/X4 35i
2014-2019
F15/F16
X5/X6 35i
2013-2018
F06/F12/F13
640i
2013-2015
F01
740i/Li
Technical specifications
Manufacturer
Nostrum High Performance
Product Type
High pressure fuel pump kit
SKU
H086-2077
Vehicle Application
BMW 3.0L N55
Flow capacity
70% over stock; 4% over the Nostrum Big Bore
Geometric displacement
1.52 cc/rev
Commanded rail pressure
250 bar / 25 MPa / 3625 psi
Pump body
Cast stainless steel, Gauntlet architecture
Fuel compatibility
Petrol, E85 and intermediate blends
Supported potential
684 whp petrol, 575 whp E85 with a full supporting build and calibration
Tuning suites
EcuTek, MHD, Bootmod3
Warranty
Limited lifetime against manufacturing defects
Frequently asked questions
Can I fit this and leave the tune alone?
No. A calibration is required. The pump can move more fuel, but the ECU has to be told to ask for it, so budget for tuning at the same time.
Will it run full E85?
Yes. The pump is compatible with petrol, E85 and blends in between, which is the main reason most N55 owners buy it.
Does anything get permanently modified?
No. The install is plug and play with zero hardware modification and fully reversible, so the car can go back to factory fuel hardware later.
Do I need bigger injectors too?
Not immediately. The pump is usually the first limit reached; injectors become the next step once you chase more airflow or a heavier blend.
Delivery, customs and taxes
Know the landed cost before you order
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Lead times and urgent orders
Check timing before you commit
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
Fitment first
Check fit before you order
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Check vehicle fitment
Need help with this product?
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.