
Performance
With Subaru’s MacPherson strut design, the vehicles entire vertical suspension load is transmitted to the top of the vehicle’s strut tower. For this reason there is inherent flex within the strut towers relative to the vehicle body. During performance driving there is enough flex to alter what should be static camber, toe, and caster settings. This change can make steering response and body roll more pronounced and unpredictable.

The PERRIN Performance strut tower brace solves this problem. During cornering, the PERRIN strut brace transfers the load of each strut tower via tension and compression of the strut bar to the opposing strut tower. This reduces flex by sharing the load and tying the strut towers together. The improved chassis rigidity enhances steering precision under high load conditions and reduces understeer. Tire wear and metal fatigue in the strut tower area can be reduced.
Construction
Utilizing CNC machined aluminum feet and mandrel bent, thin wall 4130 Cro-moly tubing, the PERRIN Strut Tower Brace is strong while remaining lightweight. The feet are two-piece assemblies made from machined aluminum and anodized black. The two pieces are held together around the strut bar with four anodized black bolts.

Finish
The strut bar is powder-coated for protection against the elements, the textured finish will look awesome for years to come. The feet are a glossy black powder coat, pad printed with the PERRIN logo. The PERRIN Strut Tower Brace for WRX / STI is available in red and black wrinkle powder coating.

Compatibility:
- 2004 Subaru STI
- 2005 Subaru STI
- 2006 Subaru STI
- 2007 Subaru STI
- 2008 Subaru STI
- 2009 Subaru STI
- 2010 Subaru STI
- 2011 Subaru STI
- 2012 Subaru STI
- 2013 Subaru STI
- 2014 Subaru STI
- 2015 Subaru STI
- 2016 Subaru STI
- 2017 Subaru STI
- 2018 Subaru STI
- 2019 Subaru STI
- 2020 Subaru STI
- 2002 Subaru WRX
- 2003 Subaru WRX
- 2004 Subaru WRX
- 2005 Subaru WRX
- 2006 Subaru WRX
- 2007 Subaru WRX
- 2008 Subaru WRX
- 2009 Subaru WRX
- 2010 Subaru WRX
- 2011 Subaru WRX
- 2012 Subaru WRX
- 2013 Subaru WRX
- 2014 Subaru WRX
- 2015 Subaru WRX
- 2016 Subaru WRX
- 2017 Subaru WRX
- 2018 Subaru WRX
- 2019 Subaru WRX
- 2020 Subaru WRX