10 DIY Auto Upgrades That Really Work

10 Bolt-On Auto Performance Upgrades That Really Work – These days, cars are so highly developed to meet emissions and fuel-economy standards that it’s usually not possible to improve over the factory designs. We said “usually”—cars are still compromises to corporate comfort and accessibility standards. We’ve found 10 relatively simple bolt-on components that give you true performance increases without permanent modifications to your car.

Source by todaysplans