Asphalt Rally Spec AR seriesMPN CSB150-AR

Special order · Estimated lead time: typically 2-3 weeks

08-14 Subaru Impreza WRX - Asphalt Rally Spec AR Coilovers

MSRP$2,090.00Sale price$1,776.50Available to order
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36-way dampingAdjustable lower mountRebuildable12 / 9.8 kg/mm
What's included
  • Four assembled coilovers, sprung and valved for this application
  • Upper mounts (pillowball with camber adjustment on MacPherson-strut fronts)
  • Damping adjustment knobs and spanner wrenches
  • Front and rear springs rated 12 kg/mm front and 9.8 kg/mm rear

One approved application: 2008–2014 Subaru Impreza WRX · GH8 · Sedan, Hatchback

1
● Available to order — typically ships in 2–3 weeks. Estimated availability: November 17, 2026. Please allow this time for assembly, preparation and packaging. Shipping transit time is additional.
Specifications — CSB150-AR
One approved application2008–2014 Subaru Impreza WRX
SeriesAsphalt Rally Spec AR
Part numberCSB150-AR
UPC840059428000
Damping36 levels of adjustment, one knob per damper
Ride heightAdjustable lower mount keeps full shock travel while lowering (spring perch where the application has no lower mount)
Asphalt Rally (AR)Extended stroke · inverted 55 mm shock on MacPherson apps
Gravel Rally (GR)Lengthened stroke · 250–270 mm springs · steel mounts
Spring ratesFront 12 kg/mm · rear 9.8 kg/mm

Product details

The Asphalt Rally Spec AR coilover fits the 2008 to 2014 Subaru Impreza WRX on the GH8 chassis in sedan and hatchback form. It comes as four assembled coilovers with 12 kg/mm front and 9.8 kg/mm rear springs, and 36 levels of damping adjustment on each damper.

Asphalt Rally uses an extended stroke and, on many MacPherson applications, an inverted 55 mm shock. The adjustable lower mount keeps full shock travel while the car is lowered, and a spring perch takes over where the application has no lower mount.

The kit is also listed for the 2008 to 2016 Subaru Impreza in sedan and hatchback form. Confirm the WRX year, chassis and body style with the year, make and model checker before ordering, because Gravel Rally is a separate kit with its own shock design.

Supported features
Extended Shock Stroke & Springs

Gravel Rally springs range from 250 mm to 270 mm with extended cylinder length and piston stroke, greatly improving handling over uneven and bumpy roads. Height range varies per vehicle and does not exceed OE ride height.

Inverted Steel Shock Absorber

Asphalt Rally uses inverted shocks on many MacPherson applications, moving the gas/oil chamber away from the knuckle and brakes to reduce heat transfer and unsprung weight.

Heavy-Duty Steel Mounts

Strengthened steel lower mounts are standard on MacPherson applications; Gravel Rally adds heavy-duty steel upper mounts on most applications. Wishbone and multi-link applications use the standard aluminum mounts.

Hardened Rubber Pillowball

Gravel Rally kits use unique hardened-rubber pillowball top mounts on MacPherson applications to absorb repeated impacts from loose surfaces.

36-Way Adjustable Damping

Simultaneous compression and rebound adjustment across 36 levels, with carefully selected per-application spring rates and damping to stabilize the car over uneven roads.

Large 55 mm Shock Bodies

Inverted applications use 55 mm bodies for added oil capacity and cooling under sustained stage loads.

Compatible applications (2)
2008–2014Subaru Impreza WRX · Chassis: GH8 · Sedan, Hatchback
2008–2016Subaru Impreza · Sedan, Hatchback
Installation

Set ride height with the adjustable lower mount where the application has one; use the spring perch only where the application-specific layout has no adjustable lower mount. Lock every collar with both spanner wrenches. Start damping 18 clicks counterclockwise from full stiff and adjust from there. Professional setup and alignment are required after installation; on MacPherson fronts, establish baseline camber at the elongated lower-mount hole before fine adjustment at the upper plate.

Coilover setup, height and damping guides
Warranty & 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. KSport coilovers are rebuildable; replacement shocks, springs, mounts and hardware are sold individually.

Warranty terms and service requests
Other published pages for MPN CSB150-AR

These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.

$1,776.50● Available to order · Add to cart