Product Details
BC Racing DS Series Coilovers for the 1990-2005 Mazda Miata (NA8C) blend street-tuned ride quality with track-ready adjustability, giving you more body control than any OEM damper without the harshness of a pure race kit. Every kit is extensively tested on the NA8C chassis and refined until it balances ride quality with performance — the reason Miata coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
DS Series kits pair a mono-tube damper with BC's proprietary digressive piston design — increased low-speed damping for flat corner entry, compliant high-speed response over expansion joints and potholes. The finished shock body is silver, visually distinct from the BR Series, and ride height is adjustable independent of spring preload. The off-the-shelf setup from BC Racing is deliberately balanced — spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.
BC Racing's reputation in the aftermarket suspension world is built on four things: competitive pricing that beats the rest of the fully-adjustable market, customization depth that rivals the top-tier race brands, long-term reliability earned over 20 years of production, and a rebuildable design that keeps the same set of dampers serving you through multiple builds. These Miata coilovers arrive tuned for the NA8C 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 simultaneous compression/rebound damping adjuster
- Mono-tube damper with BC's proprietary digressive piston
- Silver satin-chrome finished shock body (visually distinct from the BR Series)
- 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-04-DS |
| Part Name | DS Series Coilovers |
| Vehicle | 1990-2005 Mazda Miata |
| Drivetrain | RWD |
| Chassis Code | NA8C |
| Damping Adjustment | 1-Way (30 levels) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 10 kg/mm |
| Spring Rate - Rear | 8 kg/mm |
| Spring Size - Front | 62-150-10K |
| Spring Size - Rear | 62-150-8K |
| Swift Springs - Front | 62-152-X |
| Swift Springs - Rear | 62-152-X |
| Camber Plates - Front | Not Applicable |
| Camber Plates - Rear | Not Applicable |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | True Coilover |
| Notes | Ships in Extreme-Low configuration by default on this chassis. |
Vehicle Fitment
- 1990 Mazda Miata RWD (NA8C)
- 1991 Mazda Miata RWD (NA8C)
- 1992 Mazda Miata RWD (NA8C)
- 1993 Mazda Miata RWD (NA8C)
- 1994 Mazda Miata RWD (NA8C)
- 1995 Mazda Miata RWD (NA8C)
- 1996 Mazda Miata RWD (NA8C)
- 1997 Mazda Miata RWD (NA8C)
- 1998 Mazda Miata RWD (NA8C)
- 1999 Mazda Miata RWD (NA8C)
- 2000 Mazda Miata RWD (NA8C)
- 2001 Mazda Miata RWD (NA8C)
- 2002 Mazda Miata RWD (NA8C)
- 2003 Mazda Miata RWD (NA8C)
- 2004 Mazda Miata RWD (NA8C)
- 2005 Mazda Miata RWD (NA8C)