Gurney Flaps

Gurney Flaps: a small trailing-edge lip that changes how your wing works

A gurney flap is a short right-angle strip fixed to the trailing edge of a rear wing. It sits perpendicular to the airflow leaving the wing and forces the air to separate a little later and a little cleaner, which raises the pressure difference across the wing element. In plain terms: for a small part, it lets an existing wing do more of its job at speed. If you have already committed to a rear wing and want to adjust its behavior without buying a whole new aero setup, a gurney flap is the logical next step. Most fit along the top edge with existing hardware or the wing's mounting points.

What we stock

This is a focused category. There are 3 products in stock from 2 brands: Perrin Performance and BLOX Racing. The current in-stock price range runs from $117 to $166 - that is what these parts are priced at right now, not a standing offer. Everything here is built around the Subaru WRX and Subaru STI, covering model years from 2008 to 2021.

How to choose

The choice here is mostly about your exact car and wing. Fitment is specific, so match the part to your body style and wing:

  • The Perrin PSP-BDY-401BK is listed for the 10-14 WRX and 08-14 STI hatchback only, at $165.77.
  • The Perrin PSP-BDY-402BK covers the 15-21 WRX/STI sedan, and only with the premium wing, also at $165.77.
  • The BLOX Racing BXPP-26116 fits the 15-21 WRX/STI at $116.97, the lower-cost option in the group.

Read the body style and wing notes closely - a hatchback part will not carry over to a sedan, and the sedan Perrin part expects the premium wing. If your car falls in the 15-21 window, the BLOX unit is the more affordable route and the Perrin the higher-priced choice.

What else you need with it

A gurney flap is a wing detail, so think about the rest of the car's exterior at the same time. Browse the wider Exterior section for the full picture, and consider siblings like Mud Flaps for the same WRX/STI platform, Tow Hooks for track days, and Mirrors. If you are freshening up the whole rear end, Tail Lights and Lighting live in the same section.

Fitment help and ordering

Because these parts are body-style and wing specific, confirm before you buy. Call our team for fitment help at 813-535-5801 or reach us through Contact Us. All orders ship with free shipping, and Affirm and Katapult financing is available through our financing options if you want to spread the cost.

Gurney Flaps: a small trailing-edge lip that changes how your wing works

A gurney flap is a short right-angle strip fixed to the trailing edge of a rear wing. It sits perpendicular to the airflow leaving the wing and forces the air to separate a little later and a little cleaner, which raises the pressure difference across the wing element. In plain terms: for a small part, it lets an existing wing do more of its job at speed. If you have already committed to a rear wing and want to adjust its behavior without buying a whole new aero setup, a gurney flap is the logical next step. Most fit along the top edge with existing hardware or the wing's mounting points.

What we stock

This is a focused category. There are 3 products in stock from 2 brands: Perrin Performance and BLOX Racing. The current in-stock price range runs from $117 to $166 - that is what these parts are priced at right now, not a standing offer. Everything here is built around the Subaru WRX and Subaru STI, covering model years from 2008 to 2021.

How to choose

The choice here is mostly about your exact car and wing. Fitment is specific, so match the part to your body style and wing:

  • The Perrin PSP-BDY-401BK is listed for the 10-14 WRX and 08-14 STI hatchback only, at $165.77.
  • The Perrin PSP-BDY-402BK covers the 15-21 WRX/STI sedan, and only with the premium wing, also at $165.77.
  • The BLOX Racing BXPP-26116 fits the 15-21 WRX/STI at $116.97, the lower-cost option in the group.

Read the body style and wing notes closely - a hatchback part will not carry over to a sedan, and the sedan Perrin part expects the premium wing. If your car falls in the 15-21 window, the BLOX unit is the more affordable route and the Perrin the higher-priced choice.

What else you need with it

A gurney flap is a wing detail, so think about the rest of the car's exterior at the same time. Browse the wider Exterior section for the full picture, and consider siblings like Mud Flaps for the same WRX/STI platform, Tow Hooks for track days, and Mirrors. If you are freshening up the whole rear end, Tail Lights and Lighting live in the same section.

Fitment help and ordering

Because these parts are body-style and wing specific, confirm before you buy. Call our team for fitment help at 813-535-5801 or reach us through Contact Us. All orders ship with free shipping, and Affirm and Katapult financing is available through our financing options if you want to spread the cost.