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Dorch Engineering N55 Stage 2 HPFP Upgrade
There may be delays with this product. We appreciate your patience and understanding.
*Check fitment notes below*
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.
VERY IMPORTANT: It is imperative you know which harness is appropriate for your vehicle. If you are not sure which harness you need, Click Here!
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 firstname.lastname@example.org for the appropriate software changes. This change is free of charge for all of our customers.
- HPFP w/ Hardware
- High Pressure Line
- Low Pressure Line
- Low Pressure Line Bracket
- Plug-n-Play Adapter Harness
- 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
We are typically very quick and have a 24-48 hour turnaround time (this applies to products we have readily available at the warehouse and not a product that requires special order). Transit time depends on your order and which warehouse we are shipping from, but typical transit times are between 5-7 business days from one side of the US to the other. Larger items like bumpers and body kit conversions can take up to 10 business days to get you from time of ship.
Majority of the items we offer do ship free to the lower contiguous 48 states. States that require plane or boat to reach (such as Hawaii, Alaska, Puerto Rico, etc) do NOT qualify for free shipping. Larger items such as bumpers, hoods, fenders, also do NOT qualify for free shipping. Please contact us to inquire about international shipping costs. During checkout, you will know which items ship free and which have shipping costs associated with them. In general, larger/heavier items will have additional shipping costs (body kits, wheels/rims, etc)
Even though everything can be shipped internationally, sometimes the cost is simply just too high and doesn't make sense to do so. We're here to make sure you have a great shopping experience, so if you have a product(s) you want to inquire about, please contact us at email@example.com
Yes, we do price match reputable competitors in the marketplace. If you find a product cheaper elsewhere, please email us the (1) link of the product from our website and (2) the link to the competitor site. We will make an assessment on our end if we are able to price match or not and respond to you via email.
Typically you have 14 days to return a product you purchase when you change your mind. Damaged and improperly installed products are NOT eligible for returns. Shipping fees may be assessed and not refunded based on criteria as well as restocking fees. Please see our FAQ page for more details.
Unfortunate Kies Motorsports no longer does customer installs. Our HQ is solely reserved for filming, office space, and shipping/receiving.