[F87source]

Just wanted to start a thread highlighting the possible HPFP upgrades for the N55 M2. Thus all % overstock is compared to the OEM n55 hpfp, except the spool performance pump which is based off of the B58 cam profile from their website, so N55 results may be a few percent lower.

XDI:

1) XDI-35: ~36% flow over stock
2) XDI-60: ~60% flow over stock

warranty: I believe is 1 year
Tuning: MHD and BM3 supported
Compatibility: As of writing this post, it is only F series N55 compatible.
This is also the most expensive option available, and their comparable models flow less than the competition.


Spool performance:

1) FX-150: ~50% flow over stock
2) FX-180: ~78% over stock, this has been rumored on facebook and now is appearing as part of a comparison graph on their FX-150 hpfp.

Warranty: Life time
Tuning: as of writing this it is not MHD or BM3 supported and likely will need a custom remap.
Compatible: F series N55 and B58
These are significantly cheaper than XDI while also flowing significantly more as well.


DORCH engineering:
1) Stage 1: ~44% over stock
2) Stage 2: ~75% over stock
Compatible: F series N55 and B58
Tuning: BM3 and MHD supported
as of writing this it is not MHD supported and likely will need a custom remap, they also offer a free bin adjustment if you send them your ECU bin files.
Warranty: Dorch has told me life time but their site hasn't stated that yet

B58:
1) B58C: Also known as the bosch HDP5 evo hpfp which can make up to 250 bar of fuel pressure according to bosch's website and flow 0.897 cc/rev according to dorch engineering depending on which engine and cam profile it is used on (I believe the B58 cam profile allows it to have a higher cc/rev vs. the N55).
Overall this yields: ~7% more fuel flow

2) B58D: also known as the bosch HDP6 hpfp capable of making up to 350 bar of fuel pressure according to bosch's website and flow 1.107 cc/rev according to dorch engineering depending on what cam profile it is using which is engine dependent. This HPFP is on the Toyota supra, and European models of the Z4m40i, and various other bmws and mini's with the B48.
Overall this yields: ~32% more fuel flow (essentially XDI-35 levels)


Nostrum HPFP upgrade

1) Nostrum HPFP upgrade ~63% over stock
Compatible: F series N55
Tuning: BM3 check box tuning option should be released, Ecutek is the preferred tuning platform, and no word on MHD.
Warranty: Lifetime



These are all the HPFP upgrades that I have ever heard of both on the forums and from facebook groups + the respective manufacturer's teasing on product releases Instagram, please let me know if you guys have heard of any other options and I'll add it to the list.