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 Sep 18 - Sep 23

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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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4.8 ★★★★★
Based on 20 reviews
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J
Verified Purchase
Joyce S.
Lexington, US
★★★★★ 5
Dog can't pop it!
Color: Black/White, Size: Medium
Great toy would buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
E
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Elaine Laventure
Boise, US
★★★★★ 4
WHAT I LEARNED
Color: U.S.A, Size: Medium
i AM NOT SURE THAT 4 STARS IS A FAIR SCORE, MY DOG IS AN AGGRESSIVE CHEWER, NEEDLESS TO SAY WITHIN 2 DAYS ALL THE TABS WERE OFF, BUT THERE WERE NUBS LEFT AND SHE CAN USE THAT. HERE IS A WHAT NOT TO DO, BRING IT TO THE DOG PARK, THEY ALL HAVE A BLAST BUT IF YOUR A BULLY/PIT MIX AND DECIDE TO SINK THEIR TEETH INTO IT, IT DOES DEFLAT. LESSONS LEARNED STILL A FUN TOY.
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Reviewed in the United States on May 13, 2026
J
Verified Purchase
Jedi and Waggy
West Palm Beach, US
★★★★★ 5
Sturdy ball with pump
Color: Black/White, Size: Medium
Thick material so it won't pop so easy. Comes with a hand pump and 2 ball needles. Tabs for the dog to carry in his mouth. Although my dog bites the whole thing to carry. Savage loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
B
Verified Purchase
Beach Lover (Sue)
San Leandro, US
★★★★★ 5
Pup loves this!
Size: 6 Inch, Color: Red
This soccer ball is so cute. My dog loves to play with these. The straps are durable, easy to pump up (they come with a pump), good value for the money since they tend to last awhile, at least for us. The straps are durable but could be an issue if your dog is an aggressive chewer. They stay pumped up for quite awhile and just need to be topped off once in awhile to keep the bounce there. We keep them outside even in the winter and they do just fine. HIghly recommend as a good play toy.
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Reviewed in the United States on December 16, 2025
K
Verified Purchase
KDDYOUMANS
Birmingham, US
★★★★★ 5
Great Ball
Size: 6 Inch, Color: Red
Our Little Goldendoodle Loves this ball & I like that it has so many straps to grab so I'm not getting the slimy part. It does not come already inflated so make sure you or a neighbor have an air compressor to blow it up because even though it came with a little pump I can't imagine how many weeks I'd have been pumping that without noticing any difference.
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Reviewed in the United States on May 2, 2026

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