Nitron - elec-TRON ER1 Coilover Suspension Kit - BMW G8X M3/M4 (RWD)

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 our 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. 

OEM EDC Integration
elec-TRON integrates directly with the OEM system, allowing full use of the original in car controls and driving modes. Rather than replacing the factory setup, it works alongside it to deliver sharper response, greater damping precision, and a more composed ride in every mode. The result is a suspension solution that complements the character of your BMW, enhancing performance and control without sacrificing the usability and comfort you expect from the ultimate driving machine.

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 Factory EDC control
• 2-Way Independent Adjustment
  
• Shares core technology with the R3 kit
• Front Adjustable Camber Plates included
• Adjustable Swaybar End Links included
• Coil & Helper springs included

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

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
BMW G8X M3/M4, including Competition (RWD)