Does it fit a 2021 wrx sti?

Yeah it does ! Just put a good amount of 3m tape on it, because the wind hits hard over.

How long is the Gurney Flap

I'm not exactly sure but it fits on it.

Optimal Co 2015-2021 Unpainted Gurney Flap Wickerbill for Subaru WRX STi Factory OEM Trunk Boot Lip Spoiler Wing Rear Trunk Spoiler Extension Add-on 2016 2017 2018 2019 2020

Product ID: 326072510

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Details

Colour
Unpainted
Brand
Optimal Co
Exterior finish
Ready To Paint
Material
Acrylonitrile
Vehicle service type
Car

🚗2015-2021 Subaru WRX STI fit

🌬️Enhanced aerodynamics & downforce

🛠️Peel & Stick easy install

Description

🚀 Elevate your WRX STI’s performance and style—because your ride deserves the edge.

AERODYNAMIC EDGE - Boost downforce and stability with a precision-engineered gurney flap that reduces drag.
DURABLE HIGH IMPACT ABS - Built to endure all weather conditions while maintaining a sleek, aggressive look.
CUSTOMIZABLE STYLE UPGRADE - Unpainted finish lets you personalize your spoiler to match your unique aesthetic.
SEAMLESS OEM COMPATIBILITY - Perfectly designed to extend your Subaru WRX STI factory spoiler without drilling or damage.
EFFORTLESS PEEL STICK INSTALLATION - Upgrade your ride in minutes with automotive-grade adhesive—no tools, no hassle.

The Optimal Co Gurney Flap Wickerbill is a high-quality, unpainted rear trunk spoiler extension designed exclusively for 2015-2021 Subaru WRX STI factory spoilers. Crafted from durable high-impact ABS, it enhances aerodynamics by increasing downforce without added drag. Installation is quick and damage-free using automotive-grade double-sided adhesive tape, making it a perfect upgrade for enthusiasts seeking a sleek, factory-like finish and improved vehicle stability.

Specifications

Auto part position	Rear
Installation type	Peel & Stick
Automotive Fit Type	Vehicle Specific Fit
UPC	787794937834
Manufacturer	Optimal Co
Package Dimensions	118.36 x 15.24 x 6.6 cm; 590 g
Item model number	SBWRXGF15
Manufacturer Part Number	VGTRNK15-21STI
Item Weight	590 g

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Good experience, but the tracking updates could be better.

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