Suspension and Components Front Suspension Components

Whiteline

Whiteline 07-14 Subaru WRX STI Sedan/Hatch Front Control Arm Lower Inner Rear Bushing Kit

$171.88

SKU: W00A KCA425

In Stock
In Stock
Ships by Aug 6
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: KCA425

Whiteline's Anti Geometry Kit replaces the front control arm rear vertically mounted bushing and featuring low compliance synthetic elastomer with high performance/low compliance bearings for optimum dynamic alignment. Positive static caster gains can also be achieved by the offset orientation of the bearing and unique to any Whiteline Anti geometry kit before it, KCA425 allows WRX and STI owners to tune geometry from Anti Lift to Anti Dive via a combination of recommended spacers delivering a window of handling behaviour and vehicle set up for the driver's needs.

Features:

  • Engineered to alter/ eliminate unwanted bump steer, optimising the vehicles steering characteristics.
  • Engineered to alter/ optimise caster alignment to maximize tyre contact patch during roll, improve turn-in response & increase directional stability.
  • Featuring premium anodized alloy materials, Whiteline alloy products are anodized providing a long-lasting protective barrier to corrosion and wear but they look great too.
  • Install guide included providing detailed instructions on how to install your new Whiteline purchase.
  • Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
  • Specially bonded design for optimised strength typically required in high load bearing applications.
  • Whiteline's latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.

Whiteline Control arm - lower inner rear bushing.

MIA's Description

The Whiteline KCA425 is a front lower inner rear bushing kit designed to replace the vertically mounted bushing on the front control arm. It features low-compliance synthetic elastomer and high-performance bearings for optimal dynamic alignment. This kit also provides positive static caster gains and allows for tuning of geometry from Anti Lift to Anti Dive using optional spacers.

Fitment

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Specifications

BrandWhiteline
Part NumberW00A KCA425

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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