Spool Performance

FX-350 High-Pressure Fuel Pump System

$2,799.00

SKU: SP-FX35-M276-HHBG

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Spool Performance FX-350 Upgraded High Pressure Fuel Pump System is designed to enhance the performance of M276 engines. This system offers a significant upgrade over the stock high-pressure fuel pump, enabling higher fuel flow to support more aggressive tuning and increased power output. This kit includes the necessary components for installation. Buyers have the option to include the Spool Ethanol Content Analyzer with their purchase or to omit it if they already possess one or do not intend to install one. The system is available and in stock. The product is tagged with relevant applications such as C43, C450, E43, GLC43, GLE43, M276, and Mercedes, indicating its target vehicle range.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSpool Performance
Part NumberSP-FX35-M276-HHBG
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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