Air Suspension category referenceSpecial order · Estimated lead time: typically 2-4 weeks
15-18 Subaru WRX - Airtech 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- Two front air strut assemblies and two rear air strut assemblies
- Tool kit: spanner wrenches, damping adjustment knobs and application-specific brake line brackets
- Owner's manual
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-ASO
Product details
Subaru owners who want air ride without being tied to a single control package can start with part number CSB140-ASO, an Airtech strut kit for the 2015 to 2018 WRX, STI included. It provides struts and nothing to run them with, so choose your own management.
Four air struts, front and rear, each with 36 levels of damping and adjustable lower mounts, replace the factory units. The air springs give almost unlimited ride-height adjustment, and the range is stated as 0 to 120/200 mm depending on vehicle. KSport describes the bags as ready for daily driving and track use and resistant to road contaminants.
An owner's manual accompanies the set. The compatible list also shows the 2008 to 2014 Impreza WRX STI (GRB), so read your chassis and year carefully and confirm with the year/make/model checker. Complete Airtech packages exist for this car as separate part numbers if you would rather buy compressor, tank and controls together. A professional installer is the safer route.
Supported features
Designed for easy bolt-on installation and compatible with most air management systems on the market.
Near-infinite ride height adjustability from the air spring plus 36 levels of damping adjustment on each strut.
Crafted from high-quality metals and rubber compounds, proven to handle daily driving and track use, with superior resistance to road contaminants.
Fine-tune ride height at any pressure through the adjustable lower mount.
Compatible applications (2)
Choices for this system
Not included. These struts work with most air management systems; a complete KSport system is listed separately for this vehicle.
Installation
Professional installation is recommended. Modification to the OEM top mounts may be required on some applications. Recheck all air-line connections after the first 500 miles or one month, whichever comes first.
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-ASO
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.