Description

PRECISION REAR SUSPENSION TUNING FOR COMPETITION USE.

The Unlimited Works Original Rear Adjustable Lower Arm is a dedicated competition component engineered for the Mitsubishi Lancer Evolution X (CZ4A).

Designed to address the rear suspension geometry limitations of the CZ platform, this arm provides full adjustability for camber and toe settings, enabling precise alignment optimization for circuit driving and motorsport applications.

Product Highlights

⚠️ COMPETITION-ONLY PERFORMANCE COMPONENT
This product is designed strictly for motorsports and circuit use. It is not compliant with vehicle inspection (shaken) regulations and cannot be used on public roads. Purchase and installation should be limited to competition vehicles only.

🔧 SOLUTION FOR CZ EVO REAR CAMBER CHALLENGES
Unlike the previous CP/CT Evolution models which featured minimal alignment change through suspension stroke, the CZ Evolution X exhibits significant camber variation with suspension travel. When ride height is lowered, excessive negative camber often occurs—sometimes reaching nearly 3 degrees even with stock eccentric bolts adjusted to their full limit. This affects both tire wear and cornering performance.

⚙️ FULL CAMBER & TOE ADJUSTABILITY
This adjustable lower arm allows for unlimited camber and toe setup flexibility. When combined with a compatible toe control rod, even greater adjustment range is achieved, enabling:

• Aggressive camber settings for high-speed cornering on circuit courses

• Reduced camber for mini-circuit responsiveness

• Weather and tire-specific alignment optimization

🏗️ HIGH-STRENGTH COMPETITION-GRADE CONSTRUCTION

• Pillow Ball: High-capacity NMB pillow ball joint

• Pillow Collar: Ultra-hard material for durability and precision

• Pipe Material: STKM13C carbon steel for machine structural use (3mm thickness—same material used in GT race car suspension)

• Weight: 200g lighter per side than stock steel rod

Technical Specifications & Application

This is a competition-use adjustable suspension component for the Mitsubishi Lancer Evolution X.

Key Details

• Product Name: Unlimited Works Original Rear Adjustable Lower Arm

• Vehicle Application: Mitsubishi Lancer Evolution X (CZ4A)

• Usage: Competition use only (not vehicle inspection compliant)

Construction & Materials

• Pillow Ball: High-capacity NMB pillow ball

• Pillow Collar: Ultra-hard material

• Pipe: STKM13C carbon steel, 3mm thickness

• Construction Quality: Strength more than sufficient for competition applications

Installation Notes

• Some operating noise (rattling/clicking) may occur due to pillow ball construction

• Adjusting camber significantly affects toe settings—both must be adjusted simultaneously

  • Opening camber → Toe moves IN

  • Closing camber → Toe moves OUT

• When installing, set the stock eccentric bolts to their outermost position (camber-increasing side)

Adjustment Mechanism

• One side features reverse thread—standard for this type of adjustable arm

• Recording rotation counts helps facilitate return to previous alignment settings