Unlock your B58’s true potential with our Stage 1 Drop-In HPFP, engineered as a direct replacement for the factory high-pressure fuel pump on Gen 1 B58 engines. Designed for reliability and performance, this upgrade delivers increased fuel flow capacity to support higher ethanol blends (up to E50) and moderate power gains without compromising OEM drivability or cold start performance.

Key Features:

• True Plug-and-Play Installation – No custom fittings or modifications required. Direct fit for Gen 1 B58 (BMW M240i, 340i, 440i, 540i, 740i, and similar models).

• Increased Fueling Capacity – Supports higher boost levels and ethanol blends up to E50, ideal for tuned engines running Stage 2+ power levels.

• OEM-Like Reliability – Maintains factory idle quality, start-up behavior, and ECU integration with full DME compatibility.

• Precision Engineering – Built from high-grade materials to ensure consistent pressure delivery and long-term durability under demanding conditions.

Performance Benefits:

• Supports additional fueling for upgraded turbos or ethanol blends.

• Reduces the risk of fuel pressure drops at higher loads.

• Enhances overall fueling stability for smoother power delivery.

Whether you’re chasing reliable power gains or preparing for the next level of tuning, the Stage 1 Drop-In HPFP is the perfect first step toward maximizing your Gen 1 B58’s performance safely and efficiently.