Cusco 666 477 A Type II Front Lower Arm Bar for 2000-2007 Subaru WRX STI GDA/GDB

Vehicle Fitment

• 2000-2007 Subaru Impreza WRX (GDA, 4WD, 2.0L Turbo EJ20 / EJ205, Sedan) - Turbo models only
• 2000-2007 Subaru Impreza WRX STI (GDB, 4WD, 2.0L Turbo EJ20 / EJ207, Sedan/Hatchback) - Turbo models only
• 2000-2007 Subaru Impreza Sport Wagon WRX (GGA, 4WD, 2.0L Turbo EJ20 / EJ205) - Turbo models only
• 2000-2007 Subaru Impreza Sport Wagon WRX STI (GGB, 4WD, 2.0L Turbo EJ207) - Turbo models only

Fitment Notes

• Turbo (WRX/STI) models only - does NOT fit naturally aspirated Impreza variants on the same chassis.
• Cannot be used simultaneously with the Cusco Type I (Ver.1) lower arm bar - these are mutually exclusive installations.
• Fits GD/GG chassis Applied A through G (2000.8-2007.6). Includes Spec C models.
• Compatible with all downpipe configurations - no fitment conflicts with factory or aftermarket downpipes.
• Bolt-on installation using existing factory mounting locations - no drilling or cutting required.

Features

• Type II (Ver.2) multi-point design - connects the front lower arm mounts at 4 points for significantly greater rigidity than the 2-point Type I setup.
• Reduces front subframe flex under hard cornering, allowing the suspension to operate within its intended geometry for improved steering response, feedback, and front-end traction.
• Constructed from high-tension lightweight aluminum with anti-corrosion paint coating for long-term durability in harsh underbody environments.
• Especially suited for track days, autocross, and performance driving where maximum chassis stiffness is required.
• Finished in Cusco's signature blue anti-corrosion coating for a clean, motorsport-grade underbody appearance.
• Bolt-on installation using factory mounting points - compatible with all downpipe configurations.

Specifications

• Part Number: 666 477 A
• Type: Type II (Ver.2) Front Lower Arm Bar - Multi-Point (4-Point)
• Material: High-Tension Lightweight Aluminum
• Finish: Anti-Corrosion Paint Coating (Cusco Blue)
• Position: Front / Lower Subframe
• Mounting Points: 4
• Chassis Codes: GDA / GDB / GGA / GGB
• Applied Versions: A-G (2000.8-2007.6)
• Drivetrain: 4WD (AWD)
• Engine: EJ20 / EJ205 / EJ207 (Turbo Only)
• Made in Japan

Included Components

• 1x Cusco Type II Front Lower Arm Bar - Aluminum, Cusco Blue
• 1x Installation Hardware Kit (all required bolts and fasteners)

Product Description

The Cusco 666 477 A Type II Front Lower Arm Bar is a chassis rigidity upgrade engineered for the turbocharged Subaru Impreza WRX and WRX STI on the GD/GG platform (2000-2007). Where the Type I bar connects at two points, the Type II connects at four - spanning a greater area of the front lower subframe and providing a substantially stiffer underbody structure. This additional rigidity reduces the chassis flex that occurs under lateral cornering loads, keeping the front suspension in its designed geometric alignment for more consistent, predictable handling.

Built from high-tension aluminum with a Cusco blue anti-corrosion coating, the bar installs using existing factory mounting points with no modifications required. It is fully compatible with all downpipe configurations and clears factory and aftermarket hardware without conflict. Designed for drivers who demand the most from their GD/GG platform - whether on track, at autocross, or on spirited street drives - the Type II is the higher-performance choice for front lower chassis bracing on the WRX/STI.