What does engine tuning do to your car? Does it make it go faster?

My friend bought a 2019 CRV Touring and he says he isn’t happy with the 4 cylinder Turbo that puts only 190 Horsepower and he doesn’t want to upgrade to a chrysler 200S V6 cause american cars and americans are stupid he wants to stick to japanese cars Does it make your car faster? What happens if you tune a Nissan... show more My friend bought a 2019 CRV Touring and he says he isn’t happy with the 4 cylinder Turbo that puts only 190 Horsepower and he doesn’t want to upgrade to a chrysler 200S V6 cause american cars and americans are stupid he wants to stick to japanese cars

Does it make your car faster? What happens if you tune a Nissan Versa or Toyota Yaris with them only having 115 horsepower?
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