Mercury Marine Verado L6 400R Marine ECU Tuning

Compare stock and tuned power for every supported Mercury Marine Verado L6 400R marine engine. Review available performance data and request an assessment for your exact application.

  • Stock vs tuned power
  • Torque gains
  • Marine tuning specialists
  • Worldwide support

Search 300+ verified marine and outboard tuning applications

Current step

Choose your marine brand

Select a manufacturer to see supported outboards, marine engines and personal watercraft.

Mercury Marine Verado L6 400R Marine ECU Tuning

2 marine tuning configurations for the Mercury Marine Verado L6 400R. Select your exact engine to compare horsepower, torque and supported options. Power gains up to +75 HP.

← All Mercury Marine models
Mercury Marine Verado L6 400R

Mercury Marine Verado L6 400R tuning at a glance

Our catalogue covers 2 Mercury Marine Verado L6 400R engine variants, each with stock and tuned figures sourced from the remap database. The largest verified gain on the Mercury Marine Verado L6 400R is +75 HP.

Most popular Mercury Marine Verado L6 400R engines for remapping

The Mercury Marine Verado L6 400R range splits into 2 petrol variants. Every figure above comes straight from our vehicle database. Pick your exact engine to see the stage-1 numbers.