N55 Complete DI Fueling Package

This option combines our N55 HPFP kit, N55LK, and high flow M5 EU5 injectors as a package deal. When combined with a sufficient LPFP of your choice, this is everything you need to support up to 900whp (750whp on E85) of direct injection power! Dorch is currently low on N55 cores, so any N55LK orders purchased with a core deposit COULD have up to a 2 week lead-time (although 3-5 days is more typical). We are proud to offer a game-changing product for the N55 community from Dorch Engineering! With this innovative solution we are able to add up to 49% MORE fuel flow on top of either one of our existing N55 kits. This means higher power capacity than ever before possible with the OEM direct-injection fuel system. We start with Genuine BMW vacuum pump cores and install our Dorch Engineering Cam within the OEM assembly using our proprietary manufacturing tooling and validation equipment. What you end up with is a ton more fuel flow in a very simple and clean package, all while utilizing the safety and sophistication of the stock DME. These are never before seen DI power numbers!   N55 Lift Kit Size HPFP Version MINIMUM E10 Power Requirement MAXIMUM E10 Power Capacity MAXIMUM E85 Power Capacity +38% DS15 N/A 700whp 560whp +49% DS15 N/A 750whp 610whp +38% DS25 430whp 900whp 690whp +49% DS25 500whp 1000whp 770whp When combining the N55LK with our DS2/DS25 HPFP 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 DS1/DS15 on the other hand, there is no minimum power requirement so it would always make sense to use the +49% N55LK in combination with our DS1 or DS15 HPFP. Software changes are required to run this upgrade, but we do have preset optimized maps available via Bootmod3 and MHD. Simply check the box for the appropriate “Lift Kit” upgrade when flashing.   NOTE: When pushing the upper limits (and beyond) of our DS25 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 at a minimum. These are OEM BMW injectors that flow up to 750whp on E85. Package Contents: N55 DS25 HPFP Kit (Or N55 DS15 HPFP Kit) N55 Lift Kit S63 EU5 Injectors   Kit Fitment: 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 * *ONLY 2013+ models with OE Bosch HPFP KIT NOT COMPATIBLE with 2011-2012 N55 Vehicles Installation Instructions: N55 HPFP Kit Installation N55 HPFP LK Installation