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Review on πŸš€ Enhanced Performance Chip/Power Programmer for Hummer H2 6.0L and 6.2L - Boost Fuel Efficiency, Save Gas & Enhance MPG, Amplify Horsepower & Torque! by Bill Schlag

Revainrating 3 out of 5

Some mechanical knowledge required

This is all a resistor that tricks your car into thinking it's colder than it is outside so more fuel is delivered to the injectors. You must be able to select the correct wires to connect. In the end I returned it

Pros
  • Automotive
Cons
  • Socket required