PERRIN PSP-BDY-401BK Gurney Flap Semi-Gloss Black for 2008-14 Subaru WRX/STI

Vehicle Fitment

• 2008-2014 Subaru Impreza WRX Hatchback (Base/Premium/Limited, 2.0L Turbo; AWD)
• 2008-2014 Subaru Impreza WRX STI Hatchback (2.5L Turbo; AWD)

Features

• 10 g 6061-T6 plate aluminum construction
• Semi-gloss black powdercoat finish with white PERRIN logo
• Increases downforce (~35 lb @75 mph; ~62 lb @100 mph; ~100 lb @125 mph)
• Reduces trunk-spoiler lift with minimal drag penalty
• Precision laser-cut with slotted holes for alignment
• Includes thread-sert hand tool for install
• Requires drilling into OEM low-profile spoiler
• 5-year PERRIN warranty

Specifications

• Material: 10 g 6061-T6 aluminum
• Finish: semi-gloss black powdercoat
• Weight: ≈ 0.6 lb (est.)
• Dimensions: flap height ~1-2 % of spoiler chord
• Mount type: bolt-on via thread-serts

Included Components

• 1x PERRIN Gurney flap (semi-gloss black)
• 1x thread-sert installation tool
• 14x rivet-nuts
• 16x No.10 flat washers
• 14x 8-32 button-head screws
• 2x 8-32 socket-cap screws
• 1x 3/32" short-arm hex key
• 1x PERRIN license-plate frame
• 1x Instructions & warranty card

Product Description

The PERRIN PSP-BDY-401BK Gurney Flap is a precision-engineered aerodynamic add-on for 2008-2014 Subaru WRX/STI hatchbacks. Crafted from laser-cut 10-gauge 6061-T6 aluminum and finished in durable semi-gloss black powdercoat, this flap bolts to the trailing edge of your OEM spoiler. It delivers a measurable performance boost - adding approximately 35 lb of downforce at 75 mph, rising to about 100 lb at 125 mph - while keeping drag minimal.

Installation requires drilling into the existing low-profile trunk spoiler; the included thread-sert tool, hardware kit, and washers make this process clean and repeatable. The slotted holes allow fine adjustments for a perfect fit. Ideal for enthusiasts seeking subtle performance gains and a refined, aggressive aesthetic, the PSP-BDY-401BK enhances high-speed stability without radical modifications. Fitment is confirmed exclusively for hatchback models; sedan models are not supported.