
BMW · Stage 2
BMW M135i F20 Stage 2+ with Anti-Lag
A mobile Stage 2 calibration by MTechTuning, with dealer-level diagnostics before and after tuning.
Published vehicle figures
Stock
320hp
450Nm
Stage 2
415hp
620Nm
Difference
+95hp
+170Nm
Figures published for this vehicle. Results vary with model year, software, fuel and condition, so we confirm what suits your car before quoting.
BMW M135i F20 Stage 2+ with Anti-Lag
This BMW M135i F20 went from 320hp and 450Nm to 415hp and 620Nm with our Stage 2+ calibration, a gain of 95hp and 170Nm.
Prepared properly first
Before tuning, the car had an uprated service with fresh oil, filters and spark plugs. For Stage 2+ it was fitted with a downpipe and an uprated intercooler, and the calibration was written around that hardware.
Add-ons
- Speed limiter solution
- Pops and bangs in Sport and Sport+ modes
- Anti-lag
- Sports displays calibrated
What does Stage 2+ mean?
It is a Stage 2 calibration for cars with extra supporting parts such as an uprated intercooler, letting the N55 engine safely make more power. We tune at your home or workplace across Bristol, North Somerset, Somerset and South Wales.
About this job
The results
Power went from 320hp to 415hp, an increase of 95hp or around 30%.
Torque rose from 450Nm to 620Nm (+170Nm), which is what you feel most in everyday driving: stronger pull from low revs and easier overtaking.
What the work involved
Stage 2 builds on Stage 1 for cars with supporting hardware such as an upgraded intake, intercooler or exhaust. The calibration is written around those parts, so the extra airflow is put to good use within safe limits.
How we carried it out
- Diagnostic scan for stored faults before any work
- Stabilised power supply connected while programming
- Original software read and saved, so the car can be returned to standard
- Calibration written, then the car checked again afterwards
Thinking about the same for your BMW?
We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset. Results depend on the exact car, so we confirm what suits yours before quoting.

- Dealer-level diagnostics before and after
- Fully mobile, at home or work
- Lifetime software warranty and support
- 14-day money-back guarantee
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