Dodge Superchips 3715 MAX Micro Tuner is a handheld automotive programmer designed for 1998–2003 Dodge gas trucks and SUVs (including 3.9L, 4.7L, 5.2L, 5.9L, and 2003 5.7L Hemi engines). It plugs into the OBD-II port to adjust engine tuning, remove torque management, and read trouble codes
Key Features & Functions
• Performance Tunes: Offers options for 87 octane economy/performance or 91–93 octane towing and high-performance programs.
• Adjustments: Lets you modify the rev limiter, top speed limiter, shift points, and shift firmness.
• Utility Settings: Allows speedometer recalibration for non-stock tire sizes or gear changes.
• Diagnostics: Functions as a basic OBD-II code reader to check and clear check-engine trouble codes.
Important Notes on Use
• VIN Locking: These older units lock themselves to the first vehicle's VIN they program. If it was not properly returned to the stock tune (" unlocked") before being uninstalled from the previous truck, it cannot be used on another vehicle without factory support.
• Fuel Requirements: Higher-performance and towing tunes typically require higher-octane fuel to prevent engine pinging.
Are you trying to unlock a used unit, or do you need help checking compatibility for a specific year and engine?