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Your Vehicle 2006 Mercedes Benz C230 Sport Sedan 203.052 V6 2.5L
ES#5446686 - SP-FX35-M276-HHB - Spool FX-350 Upgraded High Pressure Fuel Pump System - M276 - Shatter the factory fueling limits on your M276 with a complete high pressure fuel pump upgrade that delivers 90 percent more flow to effortlessly support big turbos and heavy E85 blends! - Spool Performance - Mercedes Benz

Spool FX-350 Upgraded High Pressure Fuel Pump System - M276

Shatter the factory fueling limits on your M276 with a complete high pressure fuel pump upgrade that delivers 90 percent more flow to effortlessly support big turbos and heavy E85 blends!
Spool Performance
Mfg Part #
SP-FX35-M276-HHB SP-FX35-M276-HHB
ECS Part #
ES#5446686
Brand
Spool Performance

2799.00
$3199.00 (13% off MSRP)

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

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Product Details

Spool Performance FX-350 High-Pressure Fuel Pump Upgrade

 

What is the FX-350?

Introducing the Spool Performance FX-350: the next evolution in high-pressure fuel pumps, surpassing the previous model, the FX-200, in both performance and efficiency.

Enhanced Pressure and Flow: The FX-350 is engineered to deliver fuel at an impressive 35Mpa, significantly higher than the 25Mpa offered by the FX-200. This increase in pressure, following the physics equation Q=PxA (where Q is flow rate, P is the change in pressure, and A is the area of the injector nozzles), results in a higher flow rate through the injectors, ensuring more fuel is available for combustion, crucial for high-performance applications. The FX-350 makes your injectors flow 40% more fuel before maxing out the injection window limitations. 

Improved Fuel Atomization: The higher pressure of the FX-350 aids in better atomization of fuel. In direct-injected engines, finer fuel droplets lead to more efficient combustion. This improvement in atomization means the fuel mixes more thoroughly with air, resulting in a more complete burn. This efficiency not only increases power output but also enhances fuel economy and reduces emissions.

The Spool Performance FX-350 stands as a testament to advanced automotive engineering, offering unmatched efficiency and performance. Its ability to deliver fuel at higher pressures, coupled with superior atomization, makes it an essential upgrade for those looking to maximize the potential of their high-performance engine.


Why do you need it?

The stock HPFP on the M276 Motors is severely limited in capacity when trying to tune and raise the output of the motor. The FX-350 adds 90% more flow to the equation, raising the fueling limits on the platform and helping you run bigger turbos and/or higher ethanol concentration blends.


What does the kit include?

1x FX-350  upgraded high-pressure fuel pumps

1 x Ethanol Content Monitor kit with mobile app

1 x Bosch spec 10-micron high-flow Fuel Filter

Upgraded Fuel lines and all necessary install hardware

Spool 10-micron filter unit

The 10-micron filter unit boasts the best filtration available Mercedes market without any noticeable pressure drop in the low side fuel system. The filter unit helps keep the high-pressure pump and injectors safe by protecting them against debris and is highly recommended.

 

Spool Ethanol Content Monitor

The spool ECA kit  features a digital readout of in-tank ethanol content and fuel temperature. It includes the SPOOL Ethanol content analyzer app on mobile and readouts are delivered via BLE 4.0 low energy technology. BLE4.0 allows you to use your regular Bluetooth devices on your mobile devices while being connected to the SPOOL ECA module. Fuel lines used in the kit are black nylon coated, braided steel PTFE core and are 100% E85 compatible.

 

Are tune changes required?

The upgraded pumps do require calibration changes. It is important to apply these changes prior to starting the car with pumps installed to avoid any possible damage and void of warranty. 

Spool Performance can provide calibration details to your existing tuner and/or help you connect with established tuners who are experienced with these pumps. Custom tuning is required to get maximum output out of the upgraded pump setup for your specific vehicle setup and ambient conditions. Spool Performance is a hardware manufacturer and does not provide custom tunes, but can assist with questions your tuner may have.

 

Cross Reference
  • SP-FX35-M276-HHBG

This Part Fits the Following Vehicles

Make Model Submodel Engine Year Chasis Special Fitment Notes
Mercedes Benz C43 AMG 4Matic V6 3.0L 2017 205.064 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 2017 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 2017 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 2018 205.064 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 2018 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 2018 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2021 205.064 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2021 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2021 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2022 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2022 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2023 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG 4Matic V6 3.0L 276.823 2023 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2019 205.064 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2019 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2019 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2020 205.064 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2020 205.364 Use vehicle selector to confirm fitment
Mercedes Benz C43 AMG Base V6 3.0L 276.823 2020 205.464 Use vehicle selector to confirm fitment
Mercedes Benz C450 AMG 4Matic V6 3.0L 2016 205.064 Use vehicle selector to confirm fitment
Mercedes Benz E43 AMG 4Matic V6 3.0L 2017 213.064 Use vehicle selector to confirm fitment
Mercedes Benz E43 AMG 4Matic V6 3.0L 2018 213.064 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 2017 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 2018 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 2018 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2019 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2019 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2020 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2020 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2021 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2021 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2022 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2022 253.964 Use vehicle selector to confirm fitment
Mercedes Benz GLC43 AMG 4Matic V6 3.0L 276.823 2023 253.364 Use vehicle selector to confirm fitment
Mercedes Benz GLE43 AMG 4Matic V6 3.0L 2017 166.064 Use vehicle selector to confirm fitment
Mercedes Benz GLE43 AMG 4Matic V6 3.0L 2017 292.364 Use vehicle selector to confirm fitment
Mercedes Benz GLE43 AMG 4Matic V6 3.0L 2018 166.064 Use vehicle selector to confirm fitment
Mercedes Benz GLE43 AMG 4Matic V6 3.0L 2018 166.364 Use vehicle selector to confirm fitment
Mercedes Benz GLE43 AMG Base V6 3.0L 276.821 2019 292.364 Use vehicle selector to confirm fitment
Mercedes Benz GLE450 AMG 4Matic V6 3.0L 2016 292.364 Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

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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

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.

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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.

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Lifetime Replacement

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Click here to learn more.

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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.

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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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