After months of R&D we have finally released the world’s first B58 HPFP upgrade! This is a complete plug-and-play kit to support up to 600whp (this number can vary quite a bit depending on tuning strategy and the blend of ethanol*). There’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like the OEM pump. All of the safety and sophistication of the stock DME remain in place.

B58 HPFP Flow Capacities
The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various B58 fuel pump options. These calculations are based on the B58 cam lobe. Each engine will have varying fuel flow capacities depending on the lift and number of lobes on the camshaft.

Pump Model Fuel Flow (cc/rev)
HDP5 Evo (Stock B58) 0.954
HDP6 (Stock B58TU) 1.178
Dorch Engineering Stage 1 1.299
Dorch Engineering Stage 2 1.558
Software changes are required to run this pump.

*Full E85 is tuner-dependent, but we typically recommend our Stage 2 HPFP Upgrade kits

Kit Contents:

HPFP w/ Hardware
High Pressure Line
Quick Connect Low Pressure Line
Low Pressure Line Bracket
Plug-n-Play Adapter Harness