Ksport CHD421-APP Pressure-Based Ride Height Leveling OLED Remote Complete Air Suspension System

The Ksport CHD421-APP Pro Plus Air Suspension System delivers the ultimate in ride height control, combining four-wheel independent adjustment with an intuitive OLED color screen remote — no switches, gauges, or complex wiring required. This complete bolt-on kit is engineered for enthusiasts who demand precision, convenience, and daily drivability.

OLED Smart Remote Control

• Full-color OLED remote displays air tank pressure and individual air bag pressure at all four corners in real time
• Four user-programmable presets for instant ride height changes on the fly
• Rechargeable via standard Mini USB — includes a convenient car charger
• A standard 4-button backup remote is also included in case the OLED remote battery is depleted

Intelligent System Features

• Automatic pressure-based leveling while driving keeps the vehicle balanced without manual input
• Engine start memory automatically restores your preferred ride height at startup
• Height sensors can be added at a later date for sensor-based leveling upgrades

Premium Components Included

• Viair 444C compressor — capable of raising from lowest to maximum height in as little as 2 seconds (optional second compressor available)
• Polished lightweight 5-gallon air tank for robust air storage and fast response
• Ksport seamless installation control box for a clean, professional finish
• High-quality Ksport Airtech air bags, proven for daily driving and drift circuit use
• All hoses, fittings, wiring, and installation manuals included

Suspension Performance

• 36 levels of damping adjustment for fine-tuned ride and handling
• Adjustable lower mount for near-infinite alignment and stance customization
• 0–120mm / 0–200mm height adjustability depending on vehicle application
• No modifications to OEM shock absorbers or OEM top mounts required
• Vehicle may require minor modification for air-line routing

The Ksport CHD421-APP is a complete air suspension solution offering the convenience of single-remote operation, the confidence of automatic leveling, and the quality of proven Airtech components. Professional installation is recommended for best results.