SMY Stealth Pillow Ball CNC Aluminum Adjustable Rear Control Arms Subaru 2008-2026 WRX / STI

Take complete control over your rear alignment, save your tires from uneven wear, and shed unnecessary unsprang weight. When you lower your WRX, STI, or BRZ on Coilovers or lowering springs, the factory rear suspension naturally gains excessive negative camber. Because the OEM lower control arms completely lack camber adjustability, you are stuck with accelerated inner tire wear, reduced straight-line traction, and compromised cornering grip. The SMY Performance Stealth Adjustable Rear Lower Control Arms are the engineered fix. CNC-machined from high-grade aluminum and fitted with robust, heavy-duty adjustable ends, these arms allow you to dial in your alignment with absolute precision—whether you want to restore factory specs for a clean daily driver or maximize your contact patch for aggressive track use.

Features:
- Engineered for Pure Strength (Anti-Break Architecture): Many aftermarket control arms on the market lack proper structural engineering—using thin profiles or weak materials that flex under hard cornering and are notoriously prone to snapping or buckling under high-stress track conditions. SMY arms are over-engineered with an ultra-rigid, structurally reinforced geometric design that eliminates deflection entirely. They are built to take a beating, guaranteeing they will never bend or break.
- The Billet Aluminum Advantage vs. Competitor Steel: Traditional aftermarket brands like Whiteline, Cusco, SuperPro, and SPC rely on heavy, stamped or tubular steel configurations. By choosing SMY's premium CNC-machined billet aluminum over their steel alternatives, you unlock massive performance advantages:
     1- Zero Welds to Fail: Steel arms rely on welded joints at the high-stress end bungs, creating inherent weak points. SMY arms are carved from a single, solid piece of aluminum with zero welds to crack.
     2- 100% Corrosion Proof: Steel arms chip, scratch, and eventually rust when exposed to road salt and moisture. Aluminum naturally resists rust and corrosion, ensuring smooth adjustability for the life of the vehicle.
     3- Unsprang Weight Reduction: Aluminum delivers a far superior strength-to-weight ratio compared to steel.
- Shed 4 lbs. of Unsprang Weight: Every ounce of unsprang weight removed directly translates to faster suspension articulation, sharper shock tracking, and improved ride quality. These arms are over 2 lbs. lighter per side than standard, clunky steel arms while offering vastly superior structural rigidity.
- Now Sold Standalone (No Forced Toe Arms): By popular demand, we unbundled this kit. Instead of being forced to buy an expensive, full rear alignment package with toe arms you might not need, you can now purchase just the adjustable lower control arms. This gives you the high-end hardware you want while keeping money in your pocket.
- Massive Camber Adjustment Range: Equipped with a wide-ranging +12mm to -12mm adjustment spectrum, these arms provide the exact alignment freedom needed to correct extreme drop heights or dial in aggressive, track-focused stance settings.
- Upgraded 80-Durometer Comfort Pillow ball Ends: Avoid the harsh, noisy metal-on-metal rattling common with cheap track arms. SMY features thicker, heavily reinforced 80-durometer bushings designed to maximize cornering response and durability while dampening the harsh road noise and vibrations that ruin street driving comfort.

SMY CNC Aluminum vs. Competitor Steel Arms:

Includes:
- 2 x Aluminum Rear Control Arms (Left and Right Arms)
- 4 x Yellow Zinc Bolts / Washers / Nuts
- SMY Decals
- Lifetime Warranty

Installation:
- Control Arm Endlink Bolts: 34 ft-lbs.
- Control Arm Chassis/Hub Points (All 3): 89 ft-lbs.
- Alignment is highly Recommended after installation
- Note: To ensure flawless bushing longevity and accurate geometry, always torque down suspension components while the vehicle is resting under its full weight on the ground (loaded), never while suspended in the air.
-  Lowering your car without adjusting your camber is a recipe for burning through expensive sets of tires. Don't risk your safety on cheap, un-structured arms that can snap mid-corner, or heavy steel arms that rust out. These lightweight, solid CNC aluminum arms pay for themselves by flattening out your tire wear, maximizing your chassis rigidity, and permanently upgrading your rear-end control.

Applications:
2008-2014 Subaru WRX
2008-2014 Subaru STI
2015-2021 Subaru WRX
2015-2021 Subaru STI
2022-2026 Subaru WRX
2013-2020 Subaru BRZ
2022-2025 Subaru BRZ
2016-2026 Subaru CrossTrek
2013-2015 Subaru CrossTrek XV
2008-2026 Subaru Impreza
2009-2025 Subaru Forester
2010-2019 Subaru Legacy
2010-2019 Subaru Outback
2013-2016 Scion FRS
2017-2020 Toyota GT86
2022-2025 Toyota GR86