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SKU: 684 541 AN | UPC: 4996338685100
Cusco Strut Bar OS Rear BP9 Legacy-GT 2005-2009 Subaru Legacy
The Cusco Strut Bar OS Rear (MPN 684 541 AN) connects rear strut towers on BP9 Subaru Legacy models from 2005-2009 including GT and 2.5i trims. This bolt-on brace reduces chassis twist under hard cornering for quicker steering response and flatter posture. Drivers notice immediate gains in turn-in precision and overall control during spirited drives.
Key Features
- High Tensile Steel Pipe: Heat-treated STKM13C construction delivers rigid reinforcement without added weight at 4.6 lbs.
- Electrophoretic Paint Finish: Durable silver coating resists corrosion and withstands track abuse for long-lasting performance.
- OS Open Design: Optimized layout maximizes strut tower bracing while maintaining hood clearance and service access.
- Bolt-On Fitment: Uses factory mounting points with no drilling required for simple installation on all listed Legacy models.
- Motorsport Proven: Tested in Japanese racing series to ensure reliability under extreme loads and high-speed conditions.
Product Notes
- Confirm vehicle chassis code BP9/BL prior to purchase for exact match.
- Clean mounting surfaces thoroughly before torqueing bolts to spec.
- Packages in protective foam-lined box measuring 39.4 x 7.9 x 5.9 inches.
Installation Notes
- Professional installation recommended.
- Requires standard hand tools and 30-45 minutes per side. torque to 25-30 Nm.
- Includes all necessary M8 hardware. compatible with OEM or aftermarket shocks.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2009 | Subaru | Legacy | 2.5i |
| 2007-2009 | Subaru | Legacy | 2.5i Limited |
| 2007-2009 | Subaru | Legacy | 2.5i Special Edition |
| 2009 | Subaru | Legacy | 3.0R |
| 2008-2009 | Subaru | Legacy | 3.0R Limited |
| 2005-2006 | Subaru | Legacy | GT |
| 2005-2009 | Subaru | Legacy | GT Limited |
| 2006-2009 | Subaru | Legacy | GT spec.B |
| 2005 | Subaru | Legacy | i |
| 2005 | Subaru | Legacy | Limited |
Why Choose Cusco?
- Established Japanese brand with 50+ years in performance suspension.
- Engineered and manufactured in Japan for exact OEM integration.
- Backed by real-world testing in Super Taikyu and rally applications.
Frequently Asked Questions
-
Q: Will this fit my 2006 Subaru Legacy GT BP9 chassis?
A: Yes it directly bolts to rear strut towers on all BP9 Legacy sedans 2005-2009 without modifications. -
Q: What material and finish does the bar use?
A: Built from heat-treated high tensile steel pipe with electrophoretic silver paint for strength and rust protection. -
Q: What is the warranty and install difficulty?
A: Cusco offers lifetime warranty against defects. Install is straightforward bolt-on rated beginner-friendly with basic tools.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure cardboard box 39.4 x 7.9 x 5.9 inches with foam inserts
- Weight: 4.6 lbs
Cusco
Cusco is a Japanese performance parts manufacturer with over 40 years of motorsports experience, producing coilovers, suspension braces, differentials, roll cages, and chassis reinforcement components for top sport compact and all-wheel-drive platforms. Cusco parts are built to motorsport tolerances and are used by professional race teams competing in Japanese domestic market racing series alongside street performance enthusiasts worldwide.Popular UpgradesCusco coilover kits, strut tower braces, and rear member braces are the most popular products for Subaru WRX and STI, Toyota 86 and GR86, Mazda Miata, Honda Civic, and Mitsubishi Evo platforms. Cusco limited-slip differentials and differential braces provide improved traction and reduced chassis flex for track and autocross builds on AWD platforms. Cusco adjustable control arms and camber kits allow precise alignment correction after lowering springs or coilovers are installed.What chassis bracing does Cusco make for the Subaru WRX...
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