N55 DS15 HPFP Upgrade
- Mfg Part #
- DE-55-15B
- ECS Part #
- ES#5482537
- Brand
Product Details
For serious enthusiasts pushing the limits, the factory high-pressure fuel pump (HPFP) is a notorious bottleneck, often dropping pressure and causing lean codes when demanding more boost or running high-ethanol blends. The Dorch Engineering DS15B HPFP Upgrade is the ultimate solution. Engineered as a direct-fit, bolt-on remedy, this premium kit significantly increases fuel flow capacity without compromising OE-level reliability or control. Designed specifically for vehicles produced before December 2013, it integrates seamlessly with your factory lines and wiring, giving your N55 the high-volume fueling it needs to sustain aggressive ECU maps and advanced fueling setups. Don't let fuel starvation hold your build back.
Key Features
Delivers significantly more fuel flow volume over the stock factory pump to eliminate fuel starvation at high horsepower levels.
Engineered specifically for early-production N55 engines for a clean, factory-like installation.
Fully rated and capable of handling high-concentration E85 blends and custom flex-fuel tunes.
Preserves full powertrain control module (PCM) diagnostic and closed-loop fueling functions for smooth drivability.
Includes all necessary hardware, adapters, and high-pressure lines required for a hassle-free upgrade.
Specifications
Pump Model: DS15B
Engine Application: BMW N55 (Single Turbo Inline-6)
Vehicle Production Date: Up to 12/2013 (Early production variant)
Fuel Compatibility: Gasoline, E85, and Ethanol blends
Software Requirement: Requires an HPFP-specific ECU flash tune (e.g., Bootmod3, MHD) for proper operation
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| BMW | E70 | X5 | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E70 | X5 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E71 | X6 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E82 | 135i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E84 | X1 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E88 | 135i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E90 | 335i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E90 | 335xi | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E92 | 335i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E92 | 335xi | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | E93 | 335i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F10 | 535i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F10 | 535i xDrive | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F10 | ActiveHybrid 5 | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F15 | X5 sDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F15 | X5 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F16 | X6 sDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F16 | X6 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F22 | M235i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F22 | M235i xDrive | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F23 | M235i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F23 | M235i xDrive | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F25 | xDrive3.5i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F26 | X4 xDrive35i | N55 3.0L | For Vehicles Produced Before 12/2013 |
| BMW | F87 | M2 | N55 3.0L | For Vehicles Produced Before 12/2013 |
This product is not eligible for Lifetime Replacement
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New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
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Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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