Whiteline
Whiteline 24 mm Adjustable Front Sway Bar - 2011-2014 WRX / STI
Regular price $359.88Unit priceWhiteline
Whiteline 27 mm Adjustable Front Sway Bar - 2003-2007 WRX / STI
Regular price $356.88Unit priceWhiteline
Whiteline 24 mm Adjustable Front Sway Bar - 2003-2007 WRX / STI
Regular price $293.88Unit priceWhiteline
Whiteline Front and Rear Sway Bar Kit - 2008-2010 Subaru WRX
Regular price $930.88Unit priceWhiteline
Whiteline Front and Rear Sway Bar Kit - 2004-2007 Subaru STI
Regular price $802.88Unit priceWhiteline
Whiteline Front and Rear Sway Bar Kit - 2002-2007 Subaru WRX
Regular price $827.88Unit priceWhiteline
Whiteline Adjustable Rear Lower Control Arms - Subaru BRZ / WRX
Regular price $438.88Unit priceWhiteline
Whiteline Adjustable Rear Lower Control Arms - Subaru WRX / STI / BRZ
Regular price $357.88Unit priceWhiteline
Whiteline Caster and Anti-Lift Kit - 2015+ Subaru WRX / STI
Regular price $171.88Unit priceWhiteline
Whiteline 26 mm Adjustable Front Sway Bar - 2015-2021 Subaru STI
Regular price $319.88Unit priceWhiteline
Whiteline Front and Rear Sway Bar Kit - 2015-2021 Subaru WRX / STI
Regular price $939.88Unit priceWhiteline
Whiteline Heavy-Duty Rear Sway Bar End Links - 2002-2007 Subaru WRX
Regular price $153.88Unit priceWhiteline
Whiteline Adjustable Front Sway Bar End Links - 2002-2014 WRX / STI
Regular price $181.88Unit priceWhiteline
Whiteline 24 mm Adjustable Rear Sway Bar - 2015-2021 Subaru WRX
Regular price $390.88Unit price
None of this needs a tune. The usual first change is a bigger, adjustable rear sway bar with stronger end links, which cuts understeer without hurting the ride much. Bushings are the next step, and on older cars they are often worn out anyway. If you lower the car with springs or coilovers, get an alignment after install, and look at camber and caster parts if you want to dial it in further.
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