Whiteline Heavy Duty Blade Adjustable 24mm Front Sway Bar for 2007 Subaru WRX STI Base (GD/GG) TTS so you may need to

so you may need to replace the switch (thicker wire)

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Whiteline Heavy Duty Blade Adjustable 24mm Front Sway Bar for 2007 Subaru WRX STI Base (GD/GG) TTS so you may need toEngineered to 'Activate More Grip', Sway Bars to your 2007 Subaru WRX STI Base (GD GG) are principally designed to reduce body roll or sway. By reducing body roll, lateral loads are spread more evenly across the tires thereby increasing cornering grip and improving outright performance. This Whiteline 24mm 2 point adjustable sway bar = more grip = better handling = outright performance it's the best dollar for dollar handling improvement you can make