The DiabloSport Marathon Module helps you get better fuel mileage by enabling your V8 engine to behave like a four-cylinder engine when cruising, while still allowing for full V8 power when you need it.

  • Easy installation. Just plug into the OBDII port under the dash and drive.
  • Compatible with GM vehicles built from 2005 to current that feature Active Fuel Management (AFM).
  • Enables vehicles with AFM to drop cylinders in order to suit the driver\’s power requirements, while conserving fuel.
  • Saves fuel by allowing vehicle to stay in 4-cylinder mode 80% of the time as opposed to only 35% from the factory.

Pending 50 state legal emissions.
Not available for sale or use on pollution controlled vehicles in the state of California.

1 Items

// M1000X DiabloSport Marathon Active Fuel Management Module (M1000X)
Marathon Active Fuel Management Module
EO Status Not Applicable

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