Product Details
BC Racing ZX Series Coilovers for the 2014-2021 Mazda 6 (GJ2FP) bring the same three-axis adjustability as the race-spec ZR Series with valving tuned for drivers who split time between street and track. Every kit is extensively tested on the 6 GJ2FP chassis and refined until it balances ride quality with performance — the reason 6 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
ZX Series kits share the three-axis damper architecture of the race-spec ZR Series, tuned out of the box for drivers who want race-grade adjustability without the ride harshness on the commute home. BC Racing takes pride in choosing spring rates and damper valving that balance comfort and performance — you never end up with the oversprung, harsh-riding kit some brands ship as their only option. Drivers who want to deviate from the factory setup can order Swift Springs, custom spring rates, and custom valving at checkout; BC will re-valve the dampers to match whatever you specify, a level of customization most brands reserve for their top-tier race kits.
Since 2004, BC Racing has grown into one of the most trusted names in aftermarket coilovers — not by racing to the bottom on price, but by pairing that price with real build quality, deep customization options, and a damper design any suspension shop can rebuild instead of replacing. These 6 coilovers arrive tuned for the GJ2FP chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.
Features
- 30-level rebound adjustment
- 15-level low-speed compression adjustment
- 12-level high-speed compression adjustment
- Inverted mono-tube damper with linear twin-piston design
- Ride height adjustable independent of spring preload
- Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
- Swift Spring and custom spring rate upgrades available at checkout
- Custom damper valving paired with custom spring rates on request
- Fully rebuildable — replacement parts available from BC for the life of the shock
- 2-year manufacturer warranty against defects
Specifications
| Part Number | N-25-ZX |
| Part Name | ZX Series Coilovers |
| Vehicle | 2014-2021 Mazda 6 FWD (GJ2FP) |
| Drivetrain | FWD |
| Chassis Code | GJ2FP |
| Damping Adjustment | 3-Way (30 levels rebound 15 LSC 12 HSC) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 7 kg/mm |
| Spring Rate - Rear | 220 kg/mm |
| Spring Size - Front | 62-200-7K |
| Spring Size - Rear | 98-62-220K |
| Swift Springs - Front | 62-203-X |
| Camber Plates - Front | Included |
| Camber Plates - Rear | Not Applicable |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | True Coilover |
| Notes | The ZX Series is not available in Extreme-Low configuration. |
Vehicle Fitment
- 2014 Mazda 6 FWD (GJ2FP)
- 2015 Mazda 6 FWD (GJ2FP)
- 2016 Mazda 6 FWD (GJ2FP)
- 2017 Mazda 6 FWD (GJ2FP)
- 2018 Mazda 6 FWD (GJ2FP)
- 2019 Mazda 6 FWD (GJ2FP)
- 2020 Mazda 6 FWD (GJ2FP)
- 2021 Mazda 6 FWD (GJ2FP)









