Dorch Engineering

Now that Gen1 B58 tuning software supports true CAN-based Flex Fuel tuning, we are offering our own plug and play ECA solution! With MHD and BM3’s new features, there is no longer much of a...

We are proud to offer a game-changing product for the S55 community! With this innovative solution we are able to push +38% more fuel flow out of the OEM HPFPs! We start with Genuine BMW vacuum pump...

We are proud to offer the world’s first B58 HPFP upgrades! 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...

We are proud to offer the world’s first B58 HPFP upgrades! This is a complete plug-and-play kit to support up to 560whp on E10 fuel (this number can vary quite a bit depending on tuning...

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 650whp and also allow for full E85 up to...

This is a complete plug-and-play kit to support up to 530whp on E10 fuel (this number can vary quite a bit depending on tuning strategy and the blend of ethanol). There’s no cutting, no...