Exterior Components› Body Panels and Components

Maxton Design

Street Pro Rear Diffuser

$158.00

SKU: SUIM4FWRXSTICNC-RS1B

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Maxton Design Street Pro Rear Diffuser is an aftermarket body panel crafted to enhance the aesthetics and aerodynamics of the Subaru WRX STI Mk1. Constructed from robust 10 mm thick ABS plastic, this diffuser is designed for durability and resilience against impacts and scratches. The Street Pro Rear Diffuser offers a stylish upgrade to your vehicle's rear end. It is specifically designed for the Subaru WRX STI Mk1 models from 2014 to 2021, ensuring a precise fit. The ABS plastic material provides a balance of strength and light weight, contributing to its overall performance and longevity. Installation details suggest that this is a rear diffuser insert, and professional mounting services are available. The product is described as having a 100% fitment guarantee.

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

BrandMaxton Design
Part NumberSUIM4FWRXSTICNC-RS1B
CategoryExterior Components

Buy with Confidence

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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