BMW 4 Series Tuning Data

Gains across the BMW 4 Series range

• +26 to +74 BHPacross 52 engines with recorded figures
• +74 BHPis the largest gain in the range — 440i 326hp (+135 Nm)
• 93%of the 9,842 engines we hold gain data for see a smaller increase than that

Comparisons are calculated from our own recorded Stage 1 figures.