I'm trying to figure out what's the difference, if there is any. I know that even though the Mustang GT is a 6 cylinder vehicle, the Subaru Impreza WRX STI is a 4 cylinder vehicle, it can beat the new Mustang GT in a quarter mile race. It's lighter in weight for one I know this...However, I know the Mustang has more horsepower and Top Speed as well. Is this where torque plays a part in a sports car? Also what factors and upgrades can increase torque in a car, even if it weren't supercharged? Examples: Cold Air Intake system, Bigger Exhausts, etc. Can you list any other factors that will increase torque in a car if that's the key factor in improvement? Can you increase torque in a car without really even focusing on horsepower itself? What racing parts focus on torque?
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