Perrin 09-21 Subaru WRX Hatchback / 08-21 Subaru STI Hatchback Gurney Flap (perPSP-BDY-401BK)

Regular price $118.49 USD Sale price $118.49 USD Regular price $164.00 USD
Sale 27.75% $45.51 USD (27.75%)
In Stock!
Product Description

With the PERRIN Gurney Flap, you may improve downforce and add an aggressive look. Your low-profile trunk spoiler gets aggressive styling from the PERRIN Gurney Flap. The Gurney flap modification gives your existing spoiler a slight boost in height without appearing overly intrusive, creating a clean, distinct change. To prevent corrosion and rusting, the PERRIN Gurney Flap is made of 10g plate aluminum. Hole alignment modifications can be made during installation for a flawless fit thanks to precisely laser-cut and slotted holes. The semi-gloss black finish on each PERRIN Gurney Flap complements every Subaru color. Using powder coat paint, which can be applied thicker and has a harder finish than ordinary paint, we provide endurance against the weather. Because of the PERRIN Gurney Flap's low profile, rear visibility is essentially unaffected. The third brake light assembly is still higher than the gurney flap after installation. With the aid of our detailed instructions and the addition of our provided thread sort hand tool, installing the PERRIN Gurney Flap is simple. Although the low-profile trunk spoiler must be drilled in order to install the PERRIN Gurney Flap, the aesthetic result is well worthwhile.


  • Subaru WRX (2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
  • Subaru STI (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)


  • Aggressive Aesthetics
  • Gurney Flap is constructed from 10g plate aluminum to eliminate corrosion and rusting.
  • Gurney Flap has a semi-gloss black finish which looks good with every Subaru color.
  • Gurney Flap has a small enough profile that rear visibility is virtually unchanged.
  • Installation of the Gurney Flap is easy with our step-by-step instructions and the addition of our included thread sort hand tool.


  • (1) PERRIN Gurney Flap
  • (1) Rivet nut tool
  • (16) No 10 flat washers
  • (14) 8-32 Button head socket cap screws
  • (14) Rivet nuts
  • (2) 8-32 Socket cap screws
  • (1) #10 Star washer
  • (1) 3/32 Short arm hex key
  • (1) PERRIN License Plate Frame
  • Warranty & Instructions

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

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