BMW performance tuning RSS
BMW N55 ECU Tuning Guide — Stage 1, Stage 2 & M2 Power Gains, Cost & Process (2026)
The BMW N55 3.0-liter twin-scroll turbocharged inline-six is BMW’s most widely deployed performance engine of the 2010s — powering everything from the 335i and 435i to the M2 and M235i.
BMW N54 ECU Tuning Guide — Stage 1 & Stage 2 Power Gains, Cost & Process (2026)
The BMW N54 3.0-liter twin-turbocharged inline-six is one of the most tunable engines BMW has ever built — and it started the modern era of forced-induction BMW performance.