Our first PRAZIS S4 management system arrived in five days from Taiwan. This is a first look based on the unit and packaged contents we received, not a long-term review or an installation test.
What the PRAZIS S4 is
The S4 is the management portion of an air suspension system. It handles pressure control through its integrated control system, solenoid valves, pressure sensors, wired controller, mini remote, and iOS app control. It also offers six presets, automatic pressure calibration and drain settings, selectable compressor quantity, 1 PSI pressure adjustment, and RGB lighting.
What is included
- S4 management unit with integrated control system, solenoid valves, and pressure sensors
- Wired main controller and mini remote with antenna box
- Controller harness, compressor power cord, and fuse holder
- 33 meters of PA12 nylon tubing, 6 mm outside diameter / 4 mm inside diameter
What you still need
This is a management-only package. A complete air setup also needs a compatible air tank, compressor or compressors, fittings, and vehicle-specific air struts or bags. The right combination depends on the vehicle, the air struts, the desired trunk layout, and how the system will be used.
Who should consider it
The S4 is for a customer who wants to build an air suspension system around a compact management unit with wired control, a mini remote, iOS app control, and RGB lighting. It is not a direct replacement for factory suspension by itself. Confirm vehicle fitment and the rest of the parts list before ordering.
Our next step
We will unbox the system and share the installation experience after we have used it in a real build. Until then, this page is a clear starting point for planning the parts needed around the S4.
Shop the PRAZIS S4 management system
Ask Serious Innovations for parts guidance with your year, make, model, trim, drivetrain, and goal for the build.