For Mazda Miata owners aiming to improve cornering grip, ride quality, and stance, a well-chosen coilover kit can make a noticeable difference. This guide highlights five coilover kits that fit the NB/MK2 era Miatas (1999-2005 NB, and 1989-1997 NA/NB platforms) and explains how each option addresses handling goals, ride comfort, and install practicality. The selections emphasize adjustable options, durability, and a balance between daily driving comfort and track readiness.
| Product | Brand | Notes |
|---|---|---|
| maXpeedingrods Coilovers For Mazda MX-5 NA NB 1989-2005 | maXpeedingrods | Preset damping, height adjustable |
| AUTOSTARSHIP Height Adjustable Coilover Lowering Kit | AUTOSTARSHIP | Front 8 kg/mm, Rear 6 kg/mm springs |
| EVIL ENERGY Coilovers Compatible For Mazda Miata MX-5 NA NB | EVIL ENERGY | 1-3 inches height adjustability |
| Rev9 R9-HS2-030_2 Hyper-Street II Coilover Suspension | Rev9 | 32-way damping, full length adjustable |
| Skunk2 Racing Pro ST Coilover For Mazda Miata | Skunk2 Racing | Mono-tube, 12-way damping |
maXpeedingrods Coilovers For Mazda MX-5 NA NB 1989-2005
Designed for Mazda Miata MX-5 NA NB 1989-2005, these height-adjustable coilovers are suitable for a more aggressive stance while aiming to improve steering feel and response. They are intended to lower ride height and are not guaranteed to maintain original ride height, making them suitable for performance-minded street or occasional track use. Front and rear spring rates are 7 kg/mm (392 lbs/in) and 6 kg/mm (336 lbs/in), respectively, with a preload range of 7–10 mm and compatible spring lengths. The kit notes a front inner diameter of 70.5 mm for the springs, with a full dust cover on the 20 mm rod system. Installation is recommended to be performed by a professional to ensure proper fitment and alignment.
- Application: 1989-2005 Mazda Miata NA/NB platforms (excludes 1998 in some configs)
- Lowering: Adjustable; intended to lower ride height for a more aggressive stance
- Spring Rates: Front 7 kg/mm; Rear 6 kg/mm
- Note: Does not preserve factory ride height
AUTOSTARSHIP Height Adjustable Coilover Lowering Kit
This four-piece lowering kit is engineered for broad NB/NA compatibility, offering front springs at 8 kg/mm and rear springs at 6 kg/mm. The system uses high-tensile springs validated through extensive testing, with a surface treatment to enhance durability and resistance to wear. The kit contains two stainless steel wrenches for installation, and professional installation is highly recommended to ensure correct alignment and performance tuning for Miata applications from 1990 through 2005 models.
- Fitment: 1990-1997 Miata Base Convertible, 1999-2005 Miata Base Convertible, plus various trims
- Springs: Front 8 kg/mm; Rear 6 kg/mm
- Includes: 2 stainless steel wrenches; installation recommended by a pro
EVIL ENERGY Coilovers Compatible for Mazda Miata MX-5 NA NB 1989-2005
EVIL ENERGY offers a height-adjustable twin-tube coilover kit designed to fit a wide range of Miata NB/NA models. The kit emphasizes a lower ride height for a more aggressive stance, improved steering feel, and enhanced handling performance. Spring rates are 7 kg/mm in the front and 6 kg/mm in the rear, with a protective, corrosion-resistant coating on the springs and hardware. The product highlights include a claimed 60,000+ cycles for fatigue resistance and 1–3 inches of height adjustment for street usability.
- Compatibility: NA/NB Miata from 1989 to 2005
- Height Adjustment: 1–3 inches
- Spring Rates: Front 7 kg/mm; Rear 6 kg/mm
Rev9 R9-HS2-030_2 Hyper-Street II Coilover Suspension
The Rev9 Hyper-Street II kit is designed for Mazda Miata NB models from 1999–2005 and includes a mono-tube shock design with 32 damping settings, enabling a wide range of driving styles from daily commuting to track sessions. The front and rear spring rates are 6 kg/mm and 8 kg/mm, respectively, with a top mount option that supports standard top mounts. The 32-way damping adjustment allows fine-tuning for ride comfort and handling performance on both public roads and track days.
- Compatibility: NB Miata 1999–2005
- Damping: 32 settings
- Spring Rates: Front 6 kg/mm; Rear 8 kg/mm
Skunk2 Racing Pro ST Coilover For Mazda Miata
Skunk2’s Pro ST coilover offers a mono-tube design with 12-way adjustable damping and a one-piece forged shock body. While the product page highlights its robustness and tunability for Miata models spanning 1989-2005, the emphasis here is on being precise for NB/MK2-era applications, including a balance of street comfort and improved track performance. The single-unit construction aids durability and consistent ride quality across a broad operating range.
- Design: Mono-tube
- Damping: 12-way adjustable
- Construction: One-piece forged shock body
Buying Guide: Key Factors To Consider When Choosing Coilovers For Nb Miata
When selecting coilovers for NB Miatas, evaluate how each kit aligns with your driving goals and maintenance preferences. Consider ride height adjustment range, damping adjustability, and spring rates to balance daily comfort with performance. Lowering amounts influence ride quality and suspension travel, so select a rate that suits your typical road conditions and driving style. Installation complexity matters; some kits include tools but professional alignment is recommended for optimal handling. Durability is essential for longevity, especially on track days or spirited street driving. Always verify compatibility with your specific Miata year and trim.
- Ride height vs. ride quality: Higher spring rates offer stiffer handling but may reduce daily comfort.
- Damping adjustability: More settings allow finer tuning for street vs. track use.
- Compatibility: Confirm fitment for your exact NA/NB year and trim to avoid misfitment or clearance issues.
- Durability: Look for corrosion-resistant springs and quality seals for longevity in varied climates.
- Installation and alignment: Professional installation can ensure safe cornering and optimal tire contact.