SMY Stealth Billet Aluminum Rear Upper Control Arms Subaru 2008-2026 WRX / STI / BRZ / Scion FRS / Toyota GT86 GR86

Take definitive control over your vehicle's complex tracking angles and optimize your rear suspension footprint. When you drop your ride height for an aggressive stance, fit wider aggressive-offset wheel setups, or build a dedicated weekend track weapon, your factory rear upper suspension naturally gains massive, static negative camber. Because the OEM upper control arms are stamped from weak steel and fixed in size, they give you absolutely zero adjustability—forcing you to endure rapid inner-tire cording, a severely compromised contact patch, and reduced cornering grip. The SMY Performance Stealth Adjustable Rear Upper Control Arms are the ultimate top-tier suspension engineering fix. Precision CNC-machined from solid blocks of aircraft-grade aluminum, these arms provide the extreme adjustability and structural architecture required to dial in a flawless alignment while stabilizing your wheel geometry under extreme load.

Features:
- Precision Turnbuckle Camber Tuning: Forget the headache of unbolting your suspension every time you need to make an adjustment on the alignment rack. Equipped with a robust, high-precision turnbuckle style adjustment mechanism, these arms allow your technician to effortlessly fine-tune your rear camber settings on the fly while the car is fully weighted.
- Solid Billet Aluminum vs. Stamped Factory Steel: Factory upper control arms are pressed from thin, flexible stamped steel designed purely for basic assembly line cost-cutting. SMY arms are carved out of premium, high-strength billet aluminum. This delivers a massive leap forward in structural rigidity—meaning zero suspension deflection when loading up the tires mid-apex—while keeping unyielding unsprung weight to an absolute minimum.
- Anti-Deflection Heavy-Duty Bushings: Soft OEM rubber bushings twist, squeeze, and decay over time, causing your alignment specs to shift dynamically while you drive. SMY equips these upper arms with premium, high-density bushings that eliminate sloppy compliance entirely. You'll experience sharper turn-in, immediate suspension tracking, and direct, crisp road feedback.
- Hard-Anodized Weather Proofing: Treated with a signature "Stealth" hard-anodized finish, these arms are built to withstand the elements. They offer maximum resistance against road salt, moisture, flying track debris, and chips, ensuring your adjustment threads spin smoothly for the life of the vehicle while keeping your undercarriage looking show-ready.
- Direct Bolt-On Integration: No cutting, welding, or clearance trimming required. Engineered to exacting aerospace tolerances for a seamless, factory-plus fit into the original upper chassis and hub mounting locations.
- Location = Rear Upper Control Arms

Specs & Performance Metrics:

Includes:
- 1 x Set of Billet Control Arms
- 4 x 901000109 (OEM Subaru Hardware)
- 4 x 902350022 (OEM Subaru Hardware)

Installation:
- Professional Install Time = 1.5 Hour
- Wheel Alignment Necessary = YES
- Inner Mounting Bolts to Subframe Torque Specs = 70 Ft/lbs
- Outer Mounting Bolts to Knuckle Torque Specs = 60 Ft/lbs

Applications:
2008-2014 Subaru WRX
2008-2014 Subaru STI
2015-2021 Subaru WRX
2015-2021 Subaru STI
2022-2026 Subaru WRX
2008-2014 Subaru Impreza
2013-2020 Subaru BRZ
2022-2025 Subaru BRZ
2013-2016 Toyota FRS
2017-2020 Toyota GT86
2022-2024 Toyota GR86