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

  • Based on 57 reviews
Condition: New
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Availability: 15 left in stock
Fulfilled by Amazon

Arrives Thursday, Oct 2
Order within 21 hours and 50 minutes
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Features

  • Compatible with Subaru OEM WRX STI 2015-2021 factory spoiler. Please note that this is an extension add on to the orignal factory spoiler. (spoiler not included)
  • The spoiler is installed by automotive grade double sided adhesive tape (included). Easy installation, no modification required.
  • Made of high impact ABS material to be light weight and durable. High quality that is unmatched with other manufacturers.
  • The gurney flap will add the aggressive look to your trunk spoiler without looking too instrusive.
  • Perfect addition that will improve the aerodynamic efficiency to your vehicle.

Description

A gurney flap is a small lip placed at the trailing edge of a wing, used to dramatically sharpen the exit angle of the airflow, thereby creating more downforce without the downside of drag that a car would have from a steeper wing angle.Most spoilers on the market requires you to drill holes into your trunk. One little mistake will ruin your vehicle, not to mention it is very time consuming. Our spoilers are designed for easy installation, quick Sunday morning project. The spoiler is attached using automotive grade double sided adhesive tape. To ensure the spoiler stays attached, we recommend the surface of the trunk is cleaned throroughly as it will help the spoiler to remain in place securely. After the spoiler has been installed, please refrain from washing your car for at least 3 days. This will help the adhesive tape to set in and cure.Specifications: - Condition: 100% Brand New - Fitment: for 2015-2021 Subaru OEM WRX STI factory spoiler. (spoiler not included) - Year: 2015-2021 - Package includes: 1 Piece of rear trunk spoiler, 1 roll of adhesive tape - Finish: Unpainted - Material: High Impact ABS Note: - Installation instruction is NOT included, professional installation is recommended if you are unsure of the installation process. - This is a non-OEM product - Compatible vehicles above for reference only

Brand: Optimal Co


Exterior Finish: Unpainted


Material: Acrylonitrile Butadiene Styrene (ABS)


Vehicle Service Type: Car


Auto Part Position: Rear


Installation Type: ‎Self-Adhesive


Automotive Fit Type: ‎Vehicle Specific Fit


UPC: ‎787794937834


Manufacturer: ‎Optimal


Item Weight: ‎1.3 pounds


Package Dimensions: ‎46.6 x 6 x 2.6 inches


Item model number: ‎SBWRXGF15


Manufacturer Part Number: ‎VGTRNK15-21STI


Date First Available: January 15, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good quality
Very happy
Reviewed in the United States on June 27, 2025 by Amazon Customer

  • Perfect fit
After paint matching this turned the whole spoiler into something else! It looks amazing!
Reviewed in the United States on July 10, 2023 by CJ

  • Great
Value for money looks great
Reviewed in the United States on December 8, 2020 by Andres Noriega

  • Stay away!
Absolute garbage. You couldnt pay me to put this on my car Chinsey garb
Reviewed in the United States on March 12, 2021 by The one

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