Transform your Subaru STI’s handling with the SuperPro RCSTI099KIT Sway Bar and End Link Combo. Engineered for the VA chassis, this complete upgrade includes a solid 26mm front and 24mm rear adjustable sway bar paired with heavy-duty adjustable end links—delivering flatter cornering, more grip, and refined chassis balance.

Tailored to suit various suspension setups, this kit allows you to dial in your ride for street, track, or performance builds with three distinct tuning stages.

Key Features:

• Solid 26mm 2-position adjustable front sway bar

• Solid 24mm 3-position adjustable rear sway bar

• SuperPro adjustable end links included for both front and rear

• Reduces sway bar flex and maintains precise suspension geometry

• Ideal for daily driving, autocross, or track use

• Backed by SuperPro's 3-Year Warranty
  

Recommended Setup Stages:

• Stage 1 (Stock Suspension): Hard front + hard rear – best for stock wheels/tires

• Stage 2 (Mild Mods): Soft front + hard rear – suits lowered cars or larger wheels

• Stage 3 (Coilovers): Soft front + soft rear – ideal for track-prepped builds with coilovers

Vehicle Compatibility:

• 2015–2021 Subaru WRX STI – Base, Launch Edition, Limited, Series.HyperBlue, Type RA, S209

What’s Included:

• 1x 26mm 2-position adjustable solid front sway bar

• 1x 24mm 3-position adjustable solid rear sway bar

• 2x Front adjustable sway bar end links

• 2x Rear adjustable sway bar end links

• Mounting hardware & bushings

• Installation guide

Why SuperPro?
SuperPro’s sway bar packages are built for serious handling improvements. With tunable bar rates and end link reinforcement, this kit transforms how your STI corners—delivering better grip, flatter turns, and a truly performance-driven feel.