Spool Performance FX-200 Upgraded High Pressure Fuel Pump [N55]

The Spool Performance FX-200 Upgraded High-Pressure Fuel Pump is a Stage 2 upgrade for BMW N55 engines, designed to replace the existing FX-180. This high-performance fuel pump features a larger bore size than stock, offering double the flow compared to the factory pump. Fully E85 compatible and plug-and-play, the FX-200 installation requires no cutting or splicing, ensuring a hassle-free upgrade. The increased fuel flow enables you to run higher ethanol concentrations and supports larger turbo setups, making it a perfect fit for serious performance builds.

Why You Need It:

The stock HPFP on the BMW N55 motor has limited capacity, becoming a major bottleneck when trying to raise horsepower through aggressive tuning. The FX-200 addresses this limitation by offering double the flow of the stock pump, allowing you to:

• Run higher ethanol concentration blends like E85, which require greater fueling capacity.
• Support larger turbochargers, giving you the ability to push the limits of your engine's power output.
• Raise the fueling limits of the N55 platform, enabling more flexibility for performance tuning.

Whether you're looking to upgrade to a big turbo, increase your ethanol blend, or simply push the performance of your BMW to the next level, the FX-200 is a critical component to achieving your goals.

What’s Included in the Kit?

• 1x FX-200 Upgraded High-Pressure Fuel Pump
• Upgraded Fuel Lines and Installation Hardware

Are Tune Changes Required?

Yes, calibration changes are required after installing the FX-200 pump. These changes must be applied before starting the vehicle to avoid potential damage and to prevent voiding the warranty. Spool Performance offers calibration details for your tuner and can assist in connecting you with experienced tuners who are familiar with these pumps. Custom tuning is essential to maximize performance based on your specific setup, environment, and goals.

Low-Pressure Fuel Pump Upgrade:

Proper low-pressure fueling is vital for the performance and longevity of your high-pressure pump and injectors in direct injection (DI) systems. If the low-pressure fuel system is inadequate, it can lead to damage to the HPFP piston and bore due to improper lubrication. This can result in premature wear and potential failure of the HPFP, leading to warranty voids. Ensure that your low-pressure fuel system is properly upgraded to support the FX-200 and prevent issues related to fuel starvation.

Fitment:

The Spool Performance FX-200 Upgraded High-Pressure Fuel Pump is compatible with the BMW N55 engine, ideal for models like the 335i and 435i, as well as other vehicles using the N55 engine.

Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.