Circuit Pro 3 Way series referenceSpecial order · Estimated lead time: typically 2-3 weeks
10-13 Mazda 3 - Circuit Pro 3-Way Coilovers
Choose year, make and model to confirm this application-specific product fits — you can add it to your cart either way.
Verify fitment- 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 16 kg/mm front and 16 kg/mm rear
One approved application: 2010–2013 Mazda 3 · Includes Mazdaspeed 3
- Ships from Mesa, AZ
- 12-month limited warranty
- Special order: typically 2-3 weeks
Specifications — CMZ250-C3
Product details
Circuit Pro 3-Way is the most adjustable coilover in this lineup, and the listing for the 2010 to 2013 Mazda 3, Mazdaspeed 3 included, shows why. External reservoirs let you set rebound, compression and nitrogen pressure independently, which the page puts at 11,664 possible combinations. Some vehicles receive front reservoirs only where space at the rear is tight.
This is a race-oriented design. Springs are 16 kg/mm at both ends, the stroke is 20 to 30 mm shorter than street kits, and you may select proven rates or custom ones, with the shocks valved to match. If you still drive the car normally, the 36-way damping can be set to full soft for a comfortable cruising setting.
On the MacPherson-strut front, the advanced pillowball top mount adjusts camber and caster and replaces the stock rubber or plastic mount to reduce flex. A monotube high-pressure body keeps oil and gas apart, and the billet 6061-T6 aluminum parts are protected by zinc-plated steel bodies. Four assembled coilovers, knobs and spanner wrenches are packed. Ride height changes at the adjustable lower mount. The 2012 to 2018 Focus, excluding ST, is also listed, so verify fitment with the year, make and model checker.
Supported features
36 levels of damping adjustment. Set damping to full soft for a comfortable cruising setting for normal driving.
Standard external reservoirs allow rebound, compression, and nitrogen pressure to be adjusted independently — 11,664 possible combinations. Some vehicles receive front reservoirs only where rear space is limited.
Aggressive spring rates and shock valving combined with a 20–30 mm shorter shock stroke. Choose proven spring rates or your own custom rates; the shocks are valved to what you select.
Standard on MacPherson-strut applications: camber and caster adjustable mounts that replace the stock rubber or plastic mounts to reduce flex.
Oil and gas stay separated within the cylinder for faster, more even heat dissipation, finer damping adjustment, and consistent ride quality.
Mounts, collars, and spring perches are machined from 6061-T6 billet aluminum; steel shock bodies are zinc-plated for added protection from corrosion.
Compatible applications (2)
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 guidesWarranty & 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 requestsOther published pages for MPN CMZ250-C3
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.