Spool Performance

FX-350 High-Pressure Fuel Pump System EA825 E85

$6,499.00

SKU: SP-EA825RS6

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

Description

The Spool Performance FX-350 is a high-performance, upgraded high-pressure fuel pump system engineered for the Audi C8 RS6 Avant, featuring the EA825 engine. This system is designed to handle E85 ethanol fuel, offering enhanced fueling capabilities for demanding applications. The FX-350 pump boasts a larger bore size compared to the stock unit, which significantly increases fuel flow capacity. This upgrade is crucial for achieving higher power outputs and ensuring consistent fuel delivery under strenuous conditions. The system is built to support increased fuel demands when running performance tuning and modifications. This is a direct replacement for the factory high-pressure fuel pump, simplifying installation for mechanics and enthusiasts alike. Ensure proper compatibility with your specific vehicle configuration.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSpool Performance
Part NumberSP-EA825RS6
CategoryAir and Fuel

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy