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SKU: 198 541 A | UPC: 4996338198105
Cusco 2006-2014 Lexus IS250/IS350 Type OS Rear Strut Bar (RWD Only)
Cusco Type OS Rear Strut Bar connects the rear strut towers on 2006-2014 Lexus IS250 and IS350 RWD models. This brace reduces chassis flex under load for sharper turn-in and flatter cornering. Install it to feel tighter body control on street or track.
Key Features
- Oval Pipe Construction: φ42.7 x 19.1mm oval steel pipe delivers high rigidity at 2.3kg weight for responsive handling without added bulk
- Corrosion-Resistant Finish: Electrophoretic deposition coating protects against rust in harsh conditions
- Direct Bolt-On Design: Uses factory mounting points for quick fitment on second-generation IS chassis
- RWD-Specific Engineering: Tailored for rear-wheel drive layout to optimize rear-end stability
- Motorsport Heritage: Proven in Japanese rally and circuit racing for durable performance
Product Notes
- RWD models only. Not compatible with AWD variants
- Check strut tower clearance with aftermarket coilovers before install
- MPN 198 541 A includes mounting hardware and instructions
Installation Notes
- Professional installation recommended.
- Bolts to OEM rear strut tower brackets with provided hardware
- No cutting or drilling required. Completes in 20-30 minutes
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2014 | Lexus | IS250 | Base |
| 2010-2014 | Lexus | IS250 | C |
| 2014 | Lexus | IS250 | C F Sport |
| 2014 | Lexus | IS250 | F Sport |
| 2006-2014 | Lexus | IS350 | Base |
| 2010-2014 | Lexus | IS350 | C |
| 2014 | Lexus | IS350 | C F Sport |
| 2014 | Lexus | IS350 | F Sport |
Why Choose Cusco?
- Established Japanese brand since 1978 specializing in chassis reinforcements
- High-tensile steel meets strict JIS material standards for strength
- CAD-designed for exact OEM fitment on Lexus platforms
Frequently Asked Questions
-
Q: Does this strut bar fit AWD Lexus IS models?
A: No, designed exclusively for RWD versions of 2006-2014 IS250 and IS350 -
Q: What material and finish does it have?
A: High-tensile strength steel oval tubing with electrophoretic coating for rust protection -
Q: What warranty covers this part?
A: Cusco offers limited lifetime warranty against manufacturing defects when installed properly
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard tube 39 x 8 x 4 inches
- Weight: 5.1 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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