# SuperPro 2008 Subaru Impreza WRX STI Front Lower Alloy Control Arm Kit (+Caster)

SuperPro's ALOY0015K offers a comprehensive DIY performance upgrade for your 2008-2014 WRX STI or 2011-2014 WRX \* Featuring pre-installed SuperPro bushings in the forward position of the arm and SuperPro's caster offset DuroBall bushing assembly at the rear the kit allows a bolt-on STI style alloy arm, upgraded bushings and optimized geometry with additional caster and anti-lift geometry. The alloy arm brings strength, rigidity and a small weight savings relative to the OE steel arms. The geometry upgrades offer improved tire contact patch at the front end when accelerating, cornering and braking - working the tire more effectively and efficiently to generate greater grip and traction. The kit also includes new OEM style ball joint bosses to facilitate an easier installation (the OEM pieces are integrated into the WRX arms and often seize onto the OEM ball joints on the OEM STI arms) \* this kit will also fit a number of other Subaru models but may require other components to be swapped (sway bars, etc.) for correct fitment as well as close attention to wheel and tire sizes and wheel offsets on vehicles without the 'widebody' or blistered fenders inherent to the 08-14 STI and 11-14 WRX

-   Factory Fit - SuperPro Alloy control arms enhance performance and handling, but also provide an quick and significant upgrade whether you DIY or have them installed by your SuperPro Authorized Dealer
-   Lighter, stronger, faster - these words form the foundation of SuperPro's alloy control arm range. Reduce weight, increase strength, and optimize geometry for improved grip, handing and feedback

This Part Fits:

Year

Make

Model

Submodel

2011-2014

Subaru

Impreza

WRX

2011-2014

Subaru

Impreza

WRX Limited

2011-2014

Subaru

Impreza

WRX Premium

2008-2014

Subaru

Impreza

WRX STI

2011-2014

Subaru

Impreza

WRX STI Limited

2010

Subaru

Impreza

WRX STI Special Edition

2015-2021

Subaru

WRX

Base

2015-2021

Subaru

WRX

Limited

2015-2021

Subaru

WRX

Premium

2015-2021

Subaru

WRX STI

Base

2015

Subaru

WRX STI

Launch Edition

2015-2021

Subaru

WRX STI

Limited

2019

Subaru

WRX STI

S209

2016

Subaru

WRX STI

Series.HyperBlue

2018

Subaru

WRX STI

Type RA

## Details

- **Price:** 1057.01 CAD
- **Vendor:** Superpro
- **Type:** Control Arms

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1057.01 CAD | In stock |

## Images

- Photo - Primary
- Photo - Close Up
- User 1
- Photo - out of package
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/superpro-2008-subaru-impreza-wrx-sti-front-lower-alloy-control-arm-kit-caster)
> Updated: 2026-07-01