Fuel-It LPFP fuel pump upgrades, BMW N54 / N55 E-serie

Fuel-It! N54 & N55 LPFP Upgrades – a simple solution when the in-tank pump becomes the bottleneck

Fuel-It! fuel pump upgrades for BMW N54 and N55 engines are designed for enthusiasts and builders who need more fuel flow, whether running E85, larger turbos, or simply pushing the car harder than stock.

The bucketless solution is a cost-effective and straightforward option, especially recommended for DIY projects and drivers who understand how their fuel system works. If you are looking for the easiest OEM-style bolt-on solution instead, we recommend Precision Raceworks OEM-style bucket assembly with pre-installed Walbro pumps.

Stage 1 LPFP Upgrade – inline solution

The Stage 1 kit installs inline with your factory low-pressure fuel pump. It works alongside the stock pump and increases total fuel flow by approximately 50 % compared to a completely stock system.

• Installs inline with the factory LPFP
• Approximately 50 % more flow when combined with the stock pump
• Ideal for mildly upgraded setups

Stage 2 Bucketless LPFP Upgrade – maximum flow

The Stage 2 Bucketless kit is a complete low-pressure fuel pump upgrade that replaces the entire factory LPFP assembly with a new E85-compatible bucketless setup.

This solution provides up to 25 % more flow than the standard Fuel-It! Stage 2 upgrade and up to 100 % more flow compared to stock.

• Fully plug and play – replaces the factory bucket
• Custom CNC-machined and anodized billet aluminum bracket for pump and float assembly
• E85-compatible Walbro pump
• New Walbro filter
• Anodized billet fitting for pump outlet and factory fuel line connection
• Spare vent tube clip
• Two cotter pins to secure the float assembly

The Stage 2 bucketless kit is available with either the standard Walbro 450 pump or the optional 525 pump, which flows approximately 10 % more fuel.

Fitment – BMW N54 & N55

BMW 1 Series
2008–2013 E82 Coupe 135i
2008–2013 E88 Convertible 135i

BMW 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

BMW X Series
2010–2015 X1 SAV