Oil Breather Filter 28mm I/DOil Breather Filter with a 28mm inner diameter connection. Please watch our video on how to fit an air filter without damaging it.

including the 2009 GR STi

1 x Uprated Unos Spring

Utilising world leading springs for more precise operation and consistency

and as such

Yellow - 12

The actuator is built with a predetermined actuator spring suitable for factory boost levels

2 x FMWS5 5mm Wheel Spacer

If you want to customize this valve to better suit the needs of your engine

Powerflex Rear Subframe Rear Mounting Bush

51mm Straight Silicone Hose - 1000mm

It is recommended for any vehicle where the boost pressure has been increased by an ECU software upgrade and for unmodified vehicles operating in warmer climates

After a comprehensive development program involving thorough testing in various environments