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Dorch N55 DS25 HPFP Upgrade DE-55-25A
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Dorch N55 DS25 HPFP Upgrade DE-55-25A

DE-55-2001B
Fueling
$1,699.00
$1,699.00

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Not sure which harness you need? Click Here

 

DS25-250 HPFP Specs DS25-250 DS25-250
+ 38% N55LK
DS25-250
+ 49% N55LK
Flow Potential Gasoline 750whp 900whp 1000whp
Flow Potential E85 550whp 690whp 770whp
Operating Pressure 250 Bar 250 Bar 250 Bar

Welcome to the home of the highest powered direct injection N55 cars on the planet! If your power goals extend beyond the capacity of our DS25 HPFP alone, be sure to check out your options of pairing it with our N55LK innovation HERE.

We’re proud to introduce our latest generation of pumps! Our widely successful “Dorch Stage 2” (DS2) has been replaced with our latest and greatest creation; the DS25. This new pump is our “Stage 2.5” which has been completely redesigned and optimized from the ground up. Externally we’ve updated the pump packaging to provide improved hose routing for even easier installations. Internally, we’ve re-worked the pressure chamber, spring rates, plunger depth, and completely optimized the volumetric efficiency of the pump.

What does this mean? It means the most reliable and highest flowing N55 pump on the market just got even MORE reliable and even MORE flow! The DS25 is also designed to run efficiently all the way up to 250 bar in order to maximize the flow potential of upgraded DI injectors:

 

 

Just like our previous generation DS2 kit, there’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like the OEM pump. All of the safety and sophistication of the stock DME remain in place. Software changes are required to run this pump. If using MHD or Bootmod3, simply check the box for our pump upgrade when flashing. Otherwise, please send your .BIN file to tuning@dorchengineering.com for the appropriate software implementation via WinOLS.

 

Beyond the pump performance, why choose Dorch?

  • PLUG AND PLAY: This kit is truly 100% plug and play OEM fitment. Our kit is equipped with everything you need, including our 250 bar capacity hardline to effortlessly connect our HPFP to your fuel rail.
  • LIFETIME WARRANTY: The reason we can offer this is simply because our pumps are THAT reliable. That said, on the slim chance you have an issue, we’ve got your back!
  • CUSTOMER SUPPORT: Ask around! It’s no secret that we offer unrivaled 24/7 support with REAL help. You’re an email away from professional engineers, technicians, and our tuner, who can solve anything you throw at them.
  • TUNING SUPPORT: We aren’t just a hard part’s manufacturer. We have a dedicated calibration engineer in-house who painstakingly develops all of our HPFP files using OEM calibration tools and supports a global tuning network.


Kit Contents:

  • Dorch Lifetime Warranty
  • HPFP w/ Hardware
  • Dorch High Pressure Line
  • PTFE Low Pressure Hose
  • Plug and Play Adapter Harness


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 Installation


EU Customers: 

Please contact Pure Turbos EU for our European dealer list or order directly through their website:

  Pure Turbos EU

 

Not sure which harness you need? Click Here

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 500whp (these numbers can vary quite a bit depending on tuning strategy, fuel type, etc.). There’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like the OEM pump. All of the safety and sophistication of the stock DME remain in place.

 

N55 HPFP Flow Capacities

The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various N55 fuel pump options. These calculations are based on the N55 cam lobe. Each engine will have varying fuel flow capacities depending on the lift and number of lobes on the camshaft.
Pump Model Fuel Flow (cc/rev)
HDP5 (Stock N55) 0.837
HDP5 Evo (Stock B58) 0.897
HDP6 (Stock B58TU) 1.107
Dorch Engineering Stage 1 1.221
Dorch Engineering Stage 2 1.465

Software changes are required to run this pump. If using MHD or Bootmod3, simply check the box for our pump upgrade when flashing. Otherwise, please send your .BIN file to tuning@dorchengineering.com for the appropriate software changes. This change is free of charge for all of our customers.


Kit Contents:

  • HPFP w/ Hardware
  • High Pressure Line
  • Low Pressure Line
  • Low Pressure Line Bracket
  • Plug-n-Play Adapter Harness


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 Instructions

 

EU Customers: 

Please contact Pure Turbos EU for our European dealer list or order directly through their website:

   Pure Turbos EU

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We have a 10-day return policy, which means you have 10 days after receiving your item to request a return. Any return or cancellation will be 10% Fee. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at support@euroklasse.com. If your return is accepted, Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at support@euroklasse.com. Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, like perishable goods, custom products (such as special orders or personalized items), We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on Sale/ Discounted items or gift cards Or . Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Customer Reviews

Based on 1 review
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J
John Kirby
Kirby

The pump was perfectly engineered to fit with no modifications necessary. The electric harness was also a perfect fit with no issues!

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