Perrin Performance Gurney Flap | 2008-2014 Subaru WRX/STI (PSP-BDY-401BK)
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WRX/STI Gurney Flap by Perrin
The Perrin Gurney Flap adds aggressive styling to your trunk spoiler. Without looking too intrusive, the Gurney flap modification adds a small amount of height to your existing spoiler for a clean, clearly modified look. The Gurney Flap is a small tab projecting from the trailing edge of a wing. Typically it is set at a right angle to the pressure side surface of the airfoil, and projects 1% to 2% of the wing chord. This trailing edge device can improve the performance of a simple airfoil to nearly the same level as a complex high-performance design.
The Perrin Gurney Flap is mounted to the rear wing by drilling holes and bolting on. Other gurney flaps mount with double-sided tape and advertise an equally strong attachment. The Perrin Gurney Flap will be secured much better with its bolts than a wing with tape for much greater peace of mind.
- 6061-T6 Plate Aluminum Construction
- Mounted to the Rear Wing by Bolting
- Powder coated Semi-Gloss Black Finish
- Includes All Necessary Mounting Hardware
- WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.
- 2009 - 2014 Subaru Impreza WRX
- 2008 - 2014 Subaru Impreza WRX STI
What's In The Box?
- 1 - Perrin Gurney Flap
- 1 - Installation Tool
- Perrin Limited Warranty
Install was a bit difficult just because you have to remeasure multiple times. I could not get the rivet nuts to go in with the tools they provided, I had to use a soft mallet to get them into the spoiler. Overall the appearance is great, it’s a very rare exterior modification for the hatchbacks, it gives the car a nice kick but keeping it clean as well.