Cusco Front Member Power Brace WRX / STI (2015-2018) Wheels 5" Cat-Back

5" Cat-Back

and they will tell you that the best bang for the buck handling mod you can give your STI is a high-performance swaybar

MAF flanges are CNC machined from 6061 aluminum and the intake tube is fabricated from custom bent tubing

And with alignment

Cusco Front Member Power Brace WRX / STI (2015-2018) Wheels 5" Cat-BackCusco's Power Brace for the Subaru WRX STI is designed to stiffen up your chassis and help reduce vehicle body flex. When making excessive corners, you will want to reduce the chassis flex and increase the rigidity of your car. This is where Cusco's Power Braces come into effect! Cusco has designed these braces to be fully functional in conjunction with Cusco's other lower braces.