Effects on Performance & Warranty from Using a Performance Tuner

Question:

re: Performance Chip Tuners...do they reduce mpg? Do they impact new car warranty still in force? Im presuming they increase acceleration? Thank you.

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Expert Reply:

Performance tuners can, in a suitable vehicle, provide increased horsepower and torque by changing the engine tune. Naturally, if you're getting substantially more horsepower and torque from an engine you will be consuming more fuel in the process.

Tuners often include a driving coach program. These function as a guide to help you recognize driving behaviors that negatively affect your mileage performance. The driving coach program in a tuner like Edge # EP85401 does not change the vehicle in any way; it simply calls out habits like rapid starts that tend to consume more fuel. The idea is it will train you to be a more efficient driver.

For your 2014 Mitsubishi Mirage we do not offer any tuners, only monitoring products like the Edge Insight CS2 # EP84030. These display vehicle data that is fed to the car's OBD-II port but they do not have the ability to alter any engine or transmission settings as other products do.

Use of an engine performance tuner or monitor will NOT automatically void a vehicle manufacturer's warranty. Consumers of aftermarket products are protected by the Federal Magnusson-Moss Warranty Act. The Act states that if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever modifications you have added to your vehicle actually caused the problem in question.

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Adam R

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