B58TU High-Pressure Fuel Pump Retrofit for N55 Engines
 
Unlock increased fuelling capacity and serious performance gains with our B58TU High-Pressure Fuel Pump (HPFP) retrofit service for the BMW N55 engine. This upgrade delivers significantly higher fuel flow than the stock N55 pump, enabling stronger boost, smoother power delivery, and support for ethanol blends (E30–E50 depending on your setup).
 
A custom tune is required after installation, and we offer full in-house tuning services specifically calibrated for this retrofit. With the correct supporting modifications and our bespoke tuning, customers can expect up to 450bhp safely and reliably.
 
Whether you're chasing higher horsepower, improved fuelling stability, or a strong foundation for future upgrades, our B58TU HPFP retrofit is a proven, high-value solution for N55 performance builds.

This Listing includes the pump and fitting.

M135I/M235i/335i/435i:  https://www.pinnacletuning.com/product-page/bmw-n55-m135i-m235i-n55-tuning

M2 Tuning: https://www.pinnacletuning.com/product-page/bmw-n55-engine-remap-service-stage-2-m2