BMW 550i Stage 1 Remap
On BMW 550i naturally aspirated engines a Stage 1 remap refines the ignition timing, fuelling and throttle response maps. Without a turbo the power gain is smaller than on turbocharged engines; the difference is felt mostly in throttle response and the mid-range. No hardware is changed and the original software is backed up.
It depends on the generation and the stock output. 550i engines with 367–449 bhp reach 390–540 bhp with a Stage 1 remap; the largest gain is +91 bhp (F10/11 550i Valvetronic 449hp). Pick your version in the table below.
BMW 550i: Stage 1 figures by generation and year
Year / chassis: F10/11 - 2010 - 2016
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 5 Series 550i 407hp | 407 → 470 bhp | 600 → 700 Nm | +63 bhp |
| BMW 5 Series 550i Valvetronic 449hp | 449 → 540 bhp | 650 → 780 Nm | +91 bhp |
Year / chassis: E60/61 - 2003 - 2010
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 5 Series 550i 367hp | 367 → 390 bhp | 490 → 525 Nm | +23 bhp |