RaceChip USA is celebrating Independence Day by offering $100 off its GTS and GTS Black chips. Simply use the coupon code INDEPENDENCE when checking out, from now until July 7, 2019.

The Germany-based chip tuner was first founded in 2008 and focuses on both diesel- and gas-powered turbocharged engines, offering a wide variety of tuning upgrades that boost horsepower and torque output by up to 30%, along with up to a 20% bump in fuel economy. The company covers a broad range of automakers and engines, including BMW, Volkswagen, Ford, Volvo, Honda, Toyota, and more.

Both the RaceChip GTS and GTS Black come with a 5-year product warranty and 7 fine tuning maps. The standard GTS includes 1 re-programming if you change cars, while the GTS Black nets you 2 re-programming options if you change cars.

You can also add app control to your RaceChip for $50 additional, allowing you to select your tuning stage from your smartphone.

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