BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP
BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP

BMW N54 Stage 2.5+ LPFP Upgrade - DW400 Fuel Pump - 700 WHP

OneFastShop SKU: OFS-STG2.55
Price
22% OFF
In Stock – Ready to Ship
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
Shipping calculated at checkout.

Upgrade your BMW N54 fuel system with the OneFastShop Stage 2.5+ Low Pressure Fuel Pump (LPFP) assembly. This drop-in replacement swaps the restrictive OEM fuel bucket for a complete E85-compatible unit built around the high-output DeatschWerks DW400 pump - delivering the fuel volume needed to support up to 700 WHP. Direct replacement for BMW OEM part #16147163298, with plug-and-play installation and zero wiring modifications required.

Specifications

Pump DeatschWerks DW400
OEM Replacement BMW #16147163298
Max Power Support 700 WHP
Fuel Compatibility 91-93 octane, E85, ethanol blends, methanol injection
Installation Plug-and-play, no wiring required
Application Stage 2+ tunes, methanol injection, and ethanol blends
What's in the Box
  • Complete fuel bucket assembly with DeatschWerks DW400 pump pre-installed
  • Top hat and float assembly
  • DeatschWerks fuel filter
  • Fittings and O-ring
Part Number OFS-STG2.55

This part fits:

Year Make Model Chassis Engine
2008-2013 BMW 128i E82 / E88 N52
2008-2010 BMW 135i E82 / E88 N54
2011-2013 BMW 135i E82 / E88 N55
2013 BMW 135is E82 / E88 N55
2011 BMW 1 Series M Coupe E82 N54
2006-2010 BMW 323i E90 N52
2006 BMW 325i / 325xi E90 N52
2007-2013 BMW 328i / 328xi / 328i xDrive E90 / E91 / E92 / E93 N52
2006 BMW 330i / 330xi E90 N52
2007-2010 BMW 335i / 335xi / 335i xDrive E90 / E92 / E93 N54
2011-2013 BMW 335i / 335i xDrive E90 / E92 / E93 N55
2011-2013 BMW 335is E92 / E93 N54
2013-2015 BMW X1 sDrive28i E84 N20
2013-2015 BMW X1 xDrive28i E84 N20
2013-2015 BMW X1 xDrive35i E84 N55

EKP Compatibility Notice

Upgraded pumps draw more current than stock, so if you're on a weak or aged EKP2, it may overheat and shut down. We recommend upgrading to an EKP3.

Installation Notes

European spec vehicles: The original top hat may need to be transferred over during installation.

Required tool: A fuel pump lock ring removal tool is required for installation. Our Fuel Pump Lock Ring Removal Tool for BMW E-Chassis and MINI is available separately - add it to your order from our store.

Read before you buy. These guides cover fitment, what to expect, and how to install.

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
  • 5 stars: 23 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Christopher Moreno
Nice replacement

Was looking for a straightforward replacement. It looked properly assembled out of the box.

C
Cody M.

Beefier construction than I expected when I opened the box. Put the car on the dyno after install and the fueling was perfect with no fall-off up top. Worth the upgrade over the 450 if you have plans to push real numbers.

J
Jesse Sanders
Decent build quality

Picked this up for a repair on my car. The first thing I checked was the assembly, and everything looked consistent with the listing. Happy to have the repair finished.

A
Anthony Petrosian

Running high 600s with port injection and the DW400 hasn't broken a sweat. The bucket integration is clean and bolted right into the OEM location. Honestly the best LPFP I have installed on an N54.

V
Victoria Hamilton
Not bad at all

My old unit was due for replacement. The packaging was decent and the part was protected well enough. Everything went back together without a surprise. It met my expectations.

P
Penelope Baker
Worth considering

Bought this while sorting out a few things under the hood. The installation went more smoothly once I had the old part out.

A
Asher Harrison
Pleased with this one

I usually spend a while checking fitment before ordering parts. The first thing I checked was the assembly, and everything looked consistent with the listing. It met my expectations.

E
Elias Harper
Happy with the fit so far

Bought this while sorting out a few things under the hood. I inspected the edges and connections before installation and did not see any issues. I will update my opinion if anything changes over time.

S
Stephanie Alvarado
Reliable fit

The part felt solid when I took it out of the box. For my project, it worked out well. I did the work myself.

A
Adam White
No complaints

I ordered it for a weekend project. The dimensions were close to what I expected from the product description. Everything went back together without a surprise. Exactly the sort of uneventful replacement I was hoping for.

L
Logan Jackson
Exactly as described

I was comparing a couple of options before ordering. It took a little time to line everything up, but nothing unusual for this kind of job.

A
Alice Hudson
Everything checked out

Bought this while sorting out a few things under the hood. The dimensions were close to what I expected from the product description.

L
Liam Jimenez
Nothing fancy, works well

I needed to get the car back together without making the job more complicated. It took a little time to line everything up, but nothing unusual for this kind of job.

A
Amelia Harper
Exactly as described

I took a chance on this after checking the specifications. I would still recommend double-checking the exact vehicle application.

J
Janice Stephens
So far so good after installation

Satisfied with the purchase so far.

N
Noah Ramirez
Straightforward install

The overall quality seemed reasonable for what I paid. Nothing to complain about so far.

S
Sebastian Flores
Back together again

The original part had seen better days. The supplied part matched what I had ordered.

D
Dennis Coleman
fit like it should

Got this for a vehicle I have been working on. I inspected the edges and connections before installation and did not see any issues. A reasonable option if the application is right. The hardest part was getting access to the old component.

B
Barbara Jordan
Fit was right

I took my time with the installation rather than rushing through it. So far, I am happy with the purchase.

I
Isaac Alexander
Well packaged after installation

The original part had seen better days. The part felt solid when I took it out of the box. No complaints from me at this point. I did the work myself.

J
Jack Mills
Good replacement part

The dimensions were close to what I expected from the product description. Overall a good experience. I took photos before removing the old one.

Z
Zoe Murphy
No issues so far

I took a chance on this after checking the specifications. The installation went more smoothly once I had the old part out.

A
Aurora Robinson
Straightforward install so far

I was comparing a couple of options before ordering. I cannot speak to years of durability yet, but the initial impression is positive. A reasonable option if the application is right.

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