Air Suspension category referenceSpecial order · Estimated lead time: typically 2-4 weeks
15-18 Subaru WRX - Airtech Basic Air Suspension
Choose year, make and model to confirm this application-specific product fits — you can add it to your cart either way.
Verify fitment- Four application-specific air struts with 36-way damping and adjustable lower mounts
- Viair 444C compressor
- 5-gallon black steel air tank
- Manual paddle valves and a dual-needle 200 psi front/rear gauge
- All hoses, wiring and installation manuals
- Damping adjustment knob
One approved application: 2015–2018 Subaru WRX · incl. STI
- Ships from Mesa, AZ
- 12-month limited warranty
- Special order: typically 2-4 weeks
Specifications — CSB140-ABA
Product details
The 2015 to 2018 Subaru WRX, including the STI version, is the approved application for this Basic air kit. Four application-specific struts with 36-way damping and adjustable lower mounts are paired with a single Viair 444C compressor and a 5-gallon black steel tank. Confirm the car against the year, make and model checker before you buy.
Manual paddle valves run the front and rear bags, and a dual-needle 200 psi gauge sits beside them. Height range runs from 0 to 120 mm or 200 mm depending on the vehicle, and fine-tuning comes from the adjustable lower mount at any pressure.
Basic and Deluxe raise the car in 4 to 7 seconds, while Pro Plus and Executive raise faster, in 2 to 5 seconds. Hoses, wiring and manuals come in the box, and professional installation is recommended.
Supported features
36 levels of damping adjustment let you dial in the air struts. Insert the included damping knob and turn softer (counterclockwise) or stiffer (clockwise).
Air bags are engineered to match the vehicle. Sleeve-type and double-bellow bags are used depending on the OEM suspension design.
Like KSport coilovers, the struts allow fine-tuning of ride height at any pressure through an adjustable lower mount.
Chosen for reliability and performance; the single 444C can raise the car from lowest to maximum height in as little as four seconds. Airtech Basic and Deluxe raise in 4–7 seconds; Pro Plus and Executive raise faster, in 2–5 seconds.
Paddle valves control front and rear bags; the dual-needle gauge mounts beside the switches so pressure is always visible.
Camber-adjustable top mounts can be added on certain MacPherson-strut applications.
Compatible applications (2)
Choices for this system
Basic (paddle valves and gauge), Deluxe (electronic switches and remote), Pro Plus (OLED remote, four-corner control) and Executive (adds height sensors and auto-leveling) are separate part numbers for this vehicle; compare them on the Air Suspension page.
Available on certain MacPherson-strut applications; ask a technician whether they apply to this vehicle.
Installation
Bolt-on struts with supplied hoses, wiring and manuals; professional installation is recommended. Recheck the system after the first 500 miles or one month; to check for leaks, inflate to 70 psi and spray each fitting with soapy water.
Air suspension setup and careWarranty & service
12-month limited warranty to the original purchaser against defects in materials and workmanship. Racing use, exterior finish and improperly installed or modified parts are not covered; keep your original invoice for any claim.
Warranty terms and service requestsOther published pages for MPN CSB140-ABA
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.