7 low-cost ways to spruce up your used car
Putting a little more spring in your used car's step can make it more fun to drive. According to Domingo, a carefully designed cold-air intake system combined with a high-flow air filter to increase oxygen for combustion can add significant horsepower to any car or truck. The cost can be as little as $150.
A bolt-on turbocharger costs $3,000 to $5,000, but can add 90 horsepower or more. Scott says that anyone adding performance parts should have them professionally installed and keep the receipt to prove to a potential buyer that the work was done. But he says, "When you increase performance, you often shorten the life of the engine."