SKU: 99616450523

N55 Dorch Engineering HPFP Lift Kit (on a core exchange basis) EWG Wastegate flow spec 49% (* note details below)

Sale price$823.05 Regular price$914.50
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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For Your Every Summer RSVP, with Code: SUMMER15

Description

N55 Dorch Engineering HPFP Lift Kit (on a core exchange basis) EWG Wastegate flow spec 49% (* note details below)With this innovative solution we are able to add up to 49% MORE fuel flow on top of either one of our existing N55 HPFP kits. This means higher power capacity than ever before possible with the OEM direct injection fuel system. 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! When combining the N55LK with

With this innovative solution we are able to add up to 49% MORE fuel flow on top of either one of our existing N55 HPFP kits. This means higher power capacity than ever before possible with the OEM direct-injection fuel system. 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!

 

When combining the N55LK with our DS25 HPFP (or DS2), 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 DS15 HPFP on the other hand (or DS1), there is no minimum power requirement so it would always make sense to use the +49% N55LK in combination with our DS15 (or DS1) HPFP.

 

Software changes are required to run this upgrade, but we do have preset optimized maps available via Bootmod3 and MHD (coming soon). Simply check the box for the appropriate “Lift Kit” upgrade when flashing.

 

NOTE: When pushing much beyond the flow capacity of our existing Stage 2 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. These are OEM BMW injectors that flow up to 800whp on full E85.


Kit Contents:

  • Dorch Lifetime Warranty
  • Dorch Vacuum Pump Assembly
  • Dorch HPFP LK Mounting Flange
  • Vacuum Pump Sealing Cap
  • Vacuum Pump Gasket

 

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
NOT COMPATIBLE WITH OEM HPFPs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99616450523

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Rebekka Wyers-Williams
Houston, US
★★★★★ 5
Great toy for chewers!
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This is my dogs favorite toy! He is a super chewer and this has lasted longer than anything. It is also fun to play fetch with and bounces
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Reviewed in the United States on February 3, 2026
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Amazon Customer
Houston, US
★★★★★ 4
Long lasting high entertainment toy
Style: Tipsy Rosé
I was gifted one of these for my puppy and it is a fabulous toy. I put in dried liver chunks with at least one that is a bit of a tight fit so it drags out the experience for him. It’s highly durable, gets dragged around and pushed under furniture, and shows tooth marks but is still very effective. I also appreciate it’s easy to clean.
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Reviewed in the United States on January 18, 2026
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Esperanza flores
Lowell, US
★★★★★ 5
Belgian Mal loves it
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Our Belgian Mal LOVES this toy so much! She hasn’t destroyed it and we got it before Christmas. We put her cookies in it and it keeps her busy for about an hour
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Reviewed in the United States on February 18, 2026
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Melissa
Lake Worth, US
★★★★★ 2
Not super chew material
Style: Tipsy Rosé
This is marked as a super chewer. But it’s super flimsy I returned because my dog would destroy it in seconds. If you have a super chewer don’t recommend this toy!
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Reviewed in the United States on March 30, 2026
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Natrona Heights, US
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Having this card from Prime/ Sync has made things so much easier ! I order something & then go to cart & pay with my Prime card, nothing more. I don’t need to worry about theft or further actions or delays. It’s a done deal & I have more time added to make an additional purchase if I need to in case I forget something. I love this card 💞. So easy, I buy more here cause it’s faster, safer, & all in one easy step & Amazon has just about everything there is so why not ? Best card in my wallet !!!
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Reviewed in the United States on May 30, 2026

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