DTUK FSR+ Tuning Box (F20/F21 M135i 326PS)
DTUK’s latest petrol tuning methods allow the F20 and F21 M135i to benefit from their highly advanced FSR+ multi-channel tuning technology.
The FSR+ tuning box simply plugs into existing connectors using the supplied loom and gives you an instant performance boost, by controlling multiple signal channels from numerous sensors.
Dyno-proven software written in-house at DTUK HQ. Smooths throttle response and driveability, improves fuel economy and gives great performance increases.
- 326 PS
- 450 NM
- 370 PS
- 506 NM
Available on back-order