Cusco Strut Bar OS Rear EG-EK-DC CIVIC-integra

The Cusco Type OS Rear Strut Tower Bar is the rear-end counterpart to one of the most iconic bracing upgrades in the suspension world. Designed to reinforce the structural integrity of the rear chassis, it plays a crucial role in improving high-speed stability, turn-in precision, and overall rear-end predictability during cornering and transitions.

Constructed from high-tensile polished aluminum, the OS rear bar utilizes the same oval cross-section design as the front Type OS bar, providing an optimal balance of lightweight construction and torsional strength. The steel end plates, finished in Cusco's signature blue powder coat, are laser-cut and engineered to fit directly into factory strut tower mounting points — ensuring a no-fuss installation.

In many unibody vehicles, the rear shock towers experience subtle but significant flex under load, especially during high-G turns, uneven pavement, or aggressive weight transfers. By tying both strut tops together, the Cusco OS Rear Bar helps minimize this movement, which improves rear-end traction and makes the car feel more planted through corners. This is particularly beneficial in hatchbacks, wagons, and vehicles without a rear bulkhead, where structural rigidity is more easily compromised.

• Lightweight aluminum construction with polished finish and high torsional strength
• Oval cross-section bar design for optimal rigidity with minimal weight
• Direct bolt-on using factory strut tower locations, no modifications required
• Improves rear chassis stiffness for better handling, traction, and responsiveness
• Essential upgrade for vehicles lacking structural reinforcement behind the rear seats

Whether you're running a track build or just want your street car to handle with more composure and confidence, the Cusco OS Rear Strut Bar is a smart, effective upgrade — both functionally and visually.