Replacement side skirt / Rocker panel clip fits Subaru WRX (2008-2014)

Summary
This is a 1:1 functional reproduction of the side skirt/rocker panel retaining clip for the third-generation Subaru Impreza WRX and WRX STI widebody hatchbacks and sedans (model years 2008, 2009, 2010, 2011, 2012, 2013, and 2014).

Factory clips are notoriously brittle, often snapping when you remove the side skirts to clear out dirt or install aftermarket parts. This model replaces the factory plastic part to save you a trip to the dealership.

• Replaces Subaru OEM Part Number: 909140055 (Also cross-references with 909140020).

• Fitment: 2008–2014 Subaru WRX / STI (Specifically optimized for the GR/GV widebody chassis, including the 5-door hatchback).

Crucial Print Settings & Material Guide
Do NOT print this component in standard PLA. The high-vibration environment of a car chassis combined with summer road heat will cause PLA clips to deform or snap, leading your side skirt to sag or fall off on the highway.

• Recommended Filament: Nylon (PA) is preferred to replicate factory flexibility. ASA or ABS are excellent alternatives due to high heat and UV resistance.

• Perimeters / Walls: 4 to 5 perimeters to ensure structural rigidity for the clips.

• Infill: 100% Solid.

• Supports: [Specify if your design needs support or can print completely flat on the build plate].

Installation & Repair Guide 

If the plastic mounting track on the inside of your factory Subaru side skirt is cracked or completely broken, use this repair method to permanently fuse this 3D-printed clip back onto the panel:

1. Scuff and Prep: Use 80 to 120-grit sandpaper to thoroughly scuff the mating surface of the 3D-printed clip and the inside channel of the car's side skirt. Do not skip this; sanding creates the mechanical "teeth" the glue needs to bite into.

2. Clean: Wipe both sanded areas down with Isopropyl Alcohol (IPA) to remove all plastic dust, road grime, and oils.

3. Apply Adhesive: Mix and apply a thin, even layer of JB Weld PlasticBonder (or a similar specialized automotive structural plastic acrylic adhesive) to both scuffed faces.

4. Clamp and Cure: Firmly press the printed clip into the side skirt channel. Clamp or tape it securely in place and let it fully cure for at least 1 hour before attempting to snap the side skirt back onto the metal chassis pins of your car.