Why do I need a strut tower brace?

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.

If left un-braced your car will suffer from “dynamic-alignment changes”. 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.

Performance

The PERRIN Performance strut tower brace solves the 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, reducing flex by sharing the load and tying the strut towers together.

The improved chassis rigidity enhances steering precision under high load conditions and reduces under steer. Tire wear and metal fatigue in the strut tower area can be reduced.

Utilizing heat-treated cast aluminum feet and mandrel bent, thin wall4130 Cro-moly tubing the PERRIN bar is strong while remaining lightweight.

Aesthetics

A red crinkle powder coating accents the bar while aluminum logo plates compliment the feet. The PERRIN bar is a great Subaru specific accent for your engine bay.

• Heat-treated cast aluminum feet
• Mandrel bent, thin wall 4130 Cro-moly tubing 
• Red or black crinkle powder coating 
  

• Feet
• Cross bar
  
• Mounting hardware
• Logo Plates
• Instructions

• WRX 2002-2007
• STi 2004-2007

Please note: Depending on model year, options, and drive side some slight interference is possible with the A/C line. However, the instructions provided in each kit, accurately depict how to resolve the conflict. No damage to the A/C system is required. For additional details please contact customer service. 

 
Download Instructions:
Right-click on the icon to the left. If you see "File Not Available", contact sales@perrinperformance.com .
Select "Save Target (or Link) As"
You will be prompted to save your file on your hard drive. Choose a location and click the "Save" button.
Note: If you don't follow the instructions above, the file will not be saved to your hard drive.