Air and Fuel› Fuel Pumps, Regulators and Components

Fuel-It!

Stage 2 Bucketless Low-Pressure Fuel Pump Upgrade

$199.95

SKU: FI-N54-S4-525

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Fuel-It! Stage 4 Dual Walbro LPFP and fuel line upgrade is a high-flow, E85-ready solution for tuned BMW N54 and N55 engines pushing past 600whp. This kit provides up to 300 percent more flow than stock, retaining OE-level drivability by using the factory bucket, venturis, and in-tank transfer systems. It bypasses factory restrictions to maintain higher pressures and greater flow, making it ideal for serious street, track, and drag builds requiring stable low-pressure supply to the HPFP and port injection rail.
Show original supplier description
The Fuel-It! FI-N54-S4-525 represents a Stage 2 bucketless low-pressure fuel pump (LPFP) upgrade, engineered as a complete replacement for your stock BMW N54 or N55 fuel pump assembly. This upgrade features an E85-certified Walbro 525 pump, paired with a custom-machined billet aluminum anodized bracket that houses the pump and float assembly. It includes a new Walbro filter for clean fuel delivery and a custom anodized billet fitting for connecting the pump output to the stock fuel line. Stage 2 upgrade with a Walbro 450. It is designed as a plug-and-play solution, directly replacing the stock bucket. This fuel pump upgrade is compatible with the following BMW models: 1 Series (2008-2013 E82 Coupe 135i, 2008-2013 E88 Convertible 135i), 3 Series (2006-2011 E90 Sedan 335i/335ix, 2006-2011 E91 Touring 335i/335ix, 2006-2013 E92 Coupe 335i/335ix, 2006-2013 E93 Convertible 335i/335ix, 2011-2013 E92 Coupe 335is), and X Series (2010-2015 X1 SAV).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFuel-It!
Part NumberFI-N54-S4-525
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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