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.

2015-2021 Unpainted Gurney Flap Wickerbill for Subaru WRX STi Spoiler Extension Add-on only (Spoiler not Included) 2016 2017 2018 2019 2020

Product ID: 180683359

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Details

Auto Part Position
Rear
Brand
Optimal Co
Exterior Finish
Unpainted
Material
Acrylonitrile
Vehicle Service Type
Car

🚗2015-2021 Subaru WRX STI fit

🌬️Optimized aerodynamics & downforce

🛠️Easy peel-and-stick install

Description

🚀 Elevate your WRX STI’s stance and performance—no drill, all thrill!

CUSTOMIZABLE UNPAINTED FINISH - Ready for your personal touch—paint it to match or contrast and stand out with a factory-grade look.
DURABLE HIGH IMPACT ABS BUILD - Engineered to endure harsh weather and daily drives while maintaining sleek, aggressive styling.
AERODYNAMIC EDGE FOR PERFORMANCE - Gurney flap design sharpens airflow exit angle, boosting downforce without added drag—feel the difference on every curve.
EFFORTLESS ADHESIVE INSTALLATION - Skip the drill—premium automotive-grade double-sided tape ensures a secure, damage-free upgrade in minutes.
SEAMLESS SUBARU OEM COMPATIBILITY - Tailored exclusively for 2015-2021 WRX STI factory spoilers—no guesswork, just perfect fit.

This unpainted Gurney Flap Wickerbill is a precision-engineered 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 adding drag. Installation is a breeze with automotive-grade double-sided adhesive tape—no drilling required—making it a perfect weekend upgrade for enthusiasts seeking a sleek, aggressive, and customizable look.

Specifications

ASIN	B083XDL3MY
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#457,758 in Automotive ( See Top 100 in Automotive ) #823 in Spoilers
Customer Reviews	4.4 4.4 out of 5 stars (59)
Date First Available	January 15, 2020
Installation Type	Self-Adhesive
Item Weight	1.3 pounds
Item model number	SBWRXGF15
Manufacturer	Optimal
Manufacturer Part Number	VGTRNK15-21STI
Package Dimensions	46.6 x 6 x 2.6 inches
UPC	787794937834

Reviews

R**N

Review

Good product

13.12.2025

A**R

Good quality

Very happy

27.06.2025

C**J

Perfect fit

After paint matching this turned the whole spoiler into something else! It looks amazing!

10.07.2023

A**A

Great

Value for money looks great

8.12.2020

T**E

Stay away!

Absolute garbage. You couldnt pay me to put this on my car Chinsey garb

12.03.2021

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