When combining the N55LK with our DS25 HPFP (or DS2), it is important to note that there is a minimum power requirement. This is simply to ensure that your vehicle can easily be tuned and operated like OEM. Going below these thresholds makes your tuner’s job more difficult than it needs to be. With the DS15 HPFP on the other hand (or DS1), there is no minimum power requirement so it would always make sense to use the +49% N55LK in combination with our DS15 (or DS1) HPFP.

Software changes are required to run this upgrade, but we do have preset optimized maps available via Bootmod3 and MHD (coming soon). Simply check the box for the appropriate “Lift Kit” upgrade when flashing.

NOTE: When pushing much beyond the flow capacity of our existing Stage 2 HPFP kit, the N55 is very much limited by the injectors. In order to see the full potential of this upgrade, it is highly recommended to upgrade to the larger S63 EU5 Injectors. These are OEM BMW injectors that flow up to 800whp on full E85.

KIT CONTENTS

Dorch Lifetime Warranty

Dorch Vacuum Pump Assembly

Dorch HPFP LK Mounting Flange

Vacuum Pump Sealing Cap

Vacuum Pump Gasket 

APPLICATIONS

F87 – M2

F20/21 – 135i, 135xi

F22/23 – 235i, 235xi

F30/31/34 – 335i, 335xi

F32/33/36 – 435i, 435xi

F10/11 – 535i, 535xi *

F25/26 –  X3/X4 35i *

F15/16 – X5/X6 35i

E8X – 135i *

E9X – 335i *

E84 – X1 35i *

E70/71 – X5/X6 35i *