Nitron elec-TRON R3 Coilover Kit – BMW E9X M3
Nitron elec-TRON R3 for BMW E9X M3 combines real-time electronic damping control with the R3's independent manual adjustment. Each damper uses a proportional solenoid valve, while the R3 provides 24 rebound positions, 26 low-speed compression settings and 16 high-speed compression settings.
The elec-TRON valve operates across a 300–1800 mA range with a 6–8 millisecond response time, giving the system both rapid electronic response and detailed manual tuning range.
Key features
- Nitron proportional solenoid valve electronic damping control
- Independent wheel-by-wheel damping control
- 300–1800 mA operating range
- 6–8 millisecond full hard-to-full soft valve response
- Piston-rod mounted valve controlling shim-stack bleed
- Gas-pressurised monotube damper architecture
- Adjustable front top mounts and race springs
- Manual high-speed compression adjustment: 16 settings
- Manual low-speed compression adjustment: 26 settings
- Reservoir configuration: piggyback front / hose-mounted rear
- Includes adjustable drop links
Fitment
Fitment: E9X M3. Models: M3, M3 GTS. Nitron application years: 04–12, 05–13.
Images are representative; exact fittings and hardware vary by application.
Ordering and specification
Specification: before the kit is built we will normally confirm how the car is used, tyre choice, ride height and any relevant supporting modifications, then finalise the spring and damper specification with Nitron.
Why Swift Performance?
Swift Performance works directly with Nitron as a BMW development partner and has direct experience with Nitron elec-TRON systems on BMW platforms. That includes the suspension hardware, electronic control requirements, installation, commissioning and final chassis setup.
We can confirm the correct dampers and control hardware before the system is built, supply it for delivery, or install and commission it in-house with ride-height setup, four-wheel alignment and an appropriate baseline setup.
Frequently asked questions
How does elec-TRON control damping?
A proportional solenoid valve on each damper controls damping electronically at each wheel.
What does the system respond to?
The system can respond to inputs including G-force, vehicle speed, road surface and driver inputs.
Can Swift Performance fit and commission the system?
Yes. We can install the suspension and electronic control hardware, then complete the ride-height and alignment setup.