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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 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.
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:
Kit Fitment:
F87 ¨C M2
F20/21 ¨C 135i, 135xi
F22/23 ¨C 235i, 235xi
F30/31/34 ¨C 335i, 335xi
F32/33/36 ¨C 435i, 435xi
F10/11 ¨C 535i, 535xi *
F25/26 ¨C X3/X4 35i *
F15/16 ¨C X5/X6 35i
E8X ¨C 135i *
E9X ¨C 335i *
E84 ¨C X1 35i *
E70/71 ¨C X5/X6 35i *
*ONLY 2013+ models with OE Bosch HPFP
KIT NOT COMPATIBLE with 2011-2012 N55 Vehicles
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Free Shipping on Orders Over £50
All orders over £100 qualify for free standard shipping.
Shipping for Orders Under £50
For orders below £100, standard shipping is available at a flat rate of £5.99 at checkout. Exact shipping costs and estimated delivery times for each option will be displayed at checkout.
Shipping Times
Order Processing Time:
Orders are processed within 2–3 business days (excluding weekends and public holidays).
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
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 flyyy202211@gmail.com. Please note that returns will need to be sent to the following address: [INSERT RETURN ADDRESS]
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at flyyy202211@gmail.com.
BMW 1 Series (E81/E82/E87/E88/F20/F21)
BMW 4 Series (F32/F33/F36/G22/G23/G26)
BMW 7 Series (E38/E65/F01/G11/G70)
BMW M Series (M2/M3/M4/M5/M8/XM)
BMW X3 (E83/F25/G01)
BMW X6 (E71/F16/G06)
BMW Z4 (E85/E89/G29)
BMW 5 Series (E34/E39/E60/F10/G30/G60)