Stage 1

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.

Stage 2

After months of R&D we have finally released the world’s first B58 HPFP upgrade! Our Stage 2 kit is a bigger, better version of our Stage 1 kit for some of the more extreme applications. This is a complete plug-and-play kit to support up to 700whp and also allow for full E85 up to 550whp (these numbers can vary quite a bit depending on tuning strategy, fuel type, etc.). 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.

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.

Software changes are required to run this pump. If using MHD or Bootmod3, simply check the box for our pump upgrade when flashing. Otherwise, please send your .BIN file to tuning@dorchengineering.com for the appropriate software changes. This change is free of charge for all of our customers. 

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

G01 – X3 M40ix *
G02 – X4 M40ix *

* ONLY UP TO 2019 Model Year
KIT NOT COMPATIBLE with 2020+ B58 Vehicles

This HPFP is compatible with gen 1 B58 engine only.

NOTE: If you have a B58 equipped vehicle that is not listed, please contact info@dorchengineering.com for fitment information.

Stage 1 Full E85 is tuner-dependent, but we typically recommend our Stage 2 HPFP Upgrade kits

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 

DE-58-1001-X34 (Stage 1)

DE-58-2001-X34 (Stage 2)

Manufactured by

Dorch Engineering

Warranty

Dorch Engineering Lifetime Warranty