DeatschWerks

DW400 Performance Module for 2015-21 WRX

DW400 Performance Module for 2015-21 WRX - Main image
DW400 Performance Module for 2015-21 WRX - View 2DW400 Performance Module for 2015-21 WRX - View 3
$382.69 $539 In stock

Category: Fuel Pump Module Assembly

The DW400 Performance Module from DeatschWerks is a direct‑fit fuel pump module assembly engineered for Subaru WRX models from 2015 through 2021. Designed to deliver reliable, high‑flow performance, this module replaces the factory unit with a component built to exacting standards.

  • Exact fit for 2015‑2021 Subaru WRX without modifications.
  • Performance‑oriented design for improved fuel delivery.
  • Constructed with high‑quality materials for durability.
  • Engineered and tested by DeatschWerks for consistent operation.
  • Easy installation as a drop‑in replacement for the original pump module.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Ellie ★★★★★

Installed it in my 2015 WRX and the fuel pressure held rock solid during a full pull in third gear. The direct-fit design meant no wiring modifications needed, which saved me a ton of time. Exactly what I needed for my flex fuel setup.

Isabella ★★★★★

Pulled my old pump out and this DW400 dropped right in with no modifications needed. The flow is noticeably stronger and my AFRs finally stay steady under boost.

Hannah ★★★★☆

My tuner suggested this module when I went E85 and it's been rock solid for the two months since. The direct-fit housing made the swap much simpler than I expected, though the install still took me a full afternoon.

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