By Nitron
Nitron - elec-TRON ER3 Coilover Suspension Kit - Toyota GR Supra
The evolution of the Nitron range is here! By combining our world renowned Nitron quality and obsessive attention to detail with the latest in electronic valve technology – we present to you, elec-TRON.
The elec-TRON ER1 coilover kit utilizes the Nitron proportional solenoid valve with all of the damping control being carried out by the OEM EDC control system. This kit includes our adjustable top mounts and uses our race springs, giving you the ultimate adjustment for a perfect geometry setup.
Nitron elec-TRON Range
The Nitron elec-TRON system combines Nitron's proven suspension engineering with precision electronic valve control to deliver exceptional handling, stability, and ride comfort. At its core is Nitron’s proprietary proportional solenoid valve, allowing independent adjustment of compression and rebound damping at each wheel. This enables the suspension to react instantly to changing conditions, with a rapid 6-8 millisecond response time and a wide adjustment range of 300 to 1800 mA.
Nitron Damper Control Unit (DCU)
The Nitron DCU transforms your damper setup from passive to semi-active damping. By processing real-time data on braking, cornering, and acceleration loads, the DCU monitors the car’s attitude and through complex algorithms, adjusts the Proportional Solenoid Valve every six milliseconds, optimising grip and comfort.
Nitron DCU Features
- Adjustable control knob connected to the DCU
- Pre-installed damping calibration files tailored to your vehicle: Rain, Touring, Sport, and Race using adaptive technology
- Continuous damping optimization within the selected calibration file, offering a range from soft to firm for varying conditions
Nitron DCU Specifications
- Arm Cortex-M4 processor
- Independent control of 4 electronic dampers
- 3 static maps
- 3 active maps (acceleration, braking & yaw)
- 3 axis accelerometer
- 3 axis gyroscope
- 200Hz damping control rate
- Configured for application location and settings
In conjunction with any Nitron elec-TRON coilover kit, the DCU brings your vehicle into the future, ensuring peak performance and adaptability.
Nitron “Fast Road” Spec
A road-biased performance setup with enough capability for occasional track use. Designed for drivers who are primarily on public roads with occasional track use, emphasizing comfort while still being performance-oriented.
Fast Road Core characteristics
- Driver Profile: 80% street/20% track
- Softer spring rates
- Softer damper valving
- More compliance over bumps/street imperfections
- Works well at near OEM ride height or mild drop
- Prioritizes ride quality + usable grip on imperfect roads
- Intended use: Daily driving/canyon runs or occasional HPDE or track day (few times per year)
Nitron “Track Day” Spec
A track-focused setup that sacrifices comfort for control and performance. More focused on track performance with stiffer springs + valving and lowered ride height. This is where the car starts to feel “on edge” (in a good way on track) but can be harsher on the street.
Track Day Core characteristics
- Driver Profile: 50%+ track/aggressive street
- Stiffer spring rates
- More aggressive damper valving
- Better body control, braking stability, and transition response
- Less forgiving on rough roads
- Intended use: Frequent track days and Aggressive driving/pushing the limit and for drivers prioritizing lap time over comfort
Features
- Height adjustable (F/R: 10-35mm)
- No manual damping adjustments. Fully integrated with Niton DCU control
- 2-Way Independent Adjustment
- Shares core technology with the R3 kit
- Front Adjustable Camber Plates included
- Coil & Helper springs included
Nitron elec-TRON ER1 Specifications
- Full Alloy Body construction
- Gas pressurized monotube damper
- 46/22mm Front Piston, 40/14mm Rear Piston design
- Nitrogen Gas Charged
- Coilover or Divorced Rear Suspension Type
- Nitrogen Gas Charged
Code Isolator Kit not included (available separately). Vehicles originally equipped with EDC will require Nitron NTR Electronic Damping Delete Kit or have EDC option coded off to prevent errors.
All Nitron Coilovers are hand made to order to each individual customer's requirements. Lead times are normally 2-3 weeks, but at certain times may be slightly longer.
Vehicles Supported
Toyota GR Supra

