Air and Fuel› Fuel Pumps, Regulators and Components

Nostrum

High Pressure Fuel Pump

$1,183.00

SKU: NSTH136-0571

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Nostrum Performance High Pressure Fuel Pump is an upgraded fuel system component for the 2015-2021 Subaru WRX. It features a larger diameter piston to increase fuel capacity by 40% over the stock pump. This pump utilizes rebuilt OEM cores with corrosion-resistant internals and is dynamically tested for reliability. It supports up to 625 wheel horsepower on E85 and 875 wheel horsepower on 93 octane fuel, with a recommended commanded operating pressure of 150 bar. The pump is flex fuel compatible and supports ethanol up to E100.
Show original supplier description
The Nostrum Performance High Pressure Fuel Pump (HPFP) is designed to meet the increased fuel demands of modified 2015-2021 Subaru WRX vehicles. By incorporating a larger diameter piston, this pump offers a significant 40% increase in fuel capacity compared to the factory unit. This enhanced flow is crucial for tuning and supporting higher horsepower levels. Constructed using rebuilt OEM cores, the internals of this HPFP are treated with a corrosion-resistant coating, ensuring longevity and consistent performance. Each pump is dynamically tested to verify its reliability and flow characteristics. It is also fully compatible with flex fuel setups, supporting ethanol blends up to E100, and is recommended to be operated at a commanded pressure of 150 bar. With its increased capacity, the Nostrum HPFP is capable of supporting substantial power gains, rated to handle up to 625 wheel horsepower on E85 fuel and an impressive 875 wheel horsepower when running on 93 octane gasoline. This makes it an essential upgrade for Subaru WRX owners looking to push their performance envelope while ensuring a stable and adequate fuel supply.

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

BrandNostrum
Part NumberNSTH136-0571
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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