Cusco Rear Sway Bar 20mm WRX / STI (2008-2018) Mitsubishi Replacing them with these stiffer

Replacing them with these stiffer Subaru Group N upgraded mounts reduces the bounce and provides excellent suspension feedback and better steering feel

More cold air equals more power

Whiteline performance springs are engineered for optimal balance with OEM shocks

They have also included a wideband O2 bung for you if needed

Perrin front sway bars are made from mandrel bent 4130 steel and then powder coated to provide years of fun

Cusco Rear Sway Bar 20mm WRX / STI (2008-2018) Mitsubishi Replacing them with these stifferCusco sway bars for the Subaru WRX and STI provide extra vehicle stability due to less body roll around corners. If you're looking to improve the stability of your WRX STI you can't go wrong with a trusted brand like Cusco. Includes bushings, along with all detailed instructions making this a great do it yourself project