BMW N54/N55 Tunes

BMW N54 and N55 OTS map packs for supported factory-turbo engine and ECU combinations. Select the map for the turbo, fuel, charge cooling, exhaust, and fuel-system hardware that are installed now—not parts planned for later. Unlike naturally aspirated tune stages, factory-turbo map stages must match the required hardware and fuel listed for the exact selection.

For N54 build planning, read the complete N54 power and supporting-modification guide. N55 owners should use the N55 PWG vs EWG identification guide before selecting a map pack. Resolve mechanical faults, boost leaks, fuel-pressure problems, and cooling issues before increasing load.

Poverty Built map packs cover repeatable combinations listed on the live product page. Large single turbos, unusual upgraded turbos, supplemental fueling, non-standard sensors, built engines, custom boost control, or setups requiring ongoing log revisions belong with UNDSPTD. bespoke tuning.