Dorch Engineering BMW B58 Stage 1 High Pressure Fuel Pump (HPFP) Please Select Kit Fitment:X3/X4 or a larger x40i/x50i model

or a larger x40i/x50i model such as the X5

turbo spool speed was improved and there's an incredible sound improvement

- BMW F90 M5 Pre-LCI (2018-2020)

Here are the required steps to get your car mapped with the R44 X TW package:

Once the boost is raised beyond the factory levels the stock intercooler struggles to cool the more compressed

Dorch Engineering BMW B58 Stage 1 High Pressure Fuel Pump (HPFP) Please Select Kit Fitment:X3/X4 or a larger x40i/x50i modelDorch Engineering BMW B58 Stage 1 High Pressure Fuel Pump is an upgraded fuel pump designed to support up to 600whp from the BMW B58 engine. You receive a complete plug and play kit that drops right in like an OEM fuel pump. What's more, you retain full control from the DME and all of the safety and sophistication of the stock DME remain in place. Software changes are required to run this pump. If using Bootmod3, MHD, or MG Flasher, simply check the