Many product scams exist touting that inserting a tube of misting spray into an intake manifold will increase your mileage gains or horsepower.

Improvements in engine and design technology have been used to increase horsepower, but not to broadly improve fuel economy.

Despite their disadvantages, superchargers are still the most cost-effective way to increase horsepower.

Mr. Press dismissed concerns by some consumers and reviewers that Toyota and Honda were using the technology to increase horsepower in newer hybrid models, eroding fuel economy benefits.

All Jetta and Golf engines, however, will have increased horsepower.

The noise is a little bit like a Focus with a rusty silencer, but common ancestry means there are lots of tuning parts, such as throttle bodies, that can increase horsepower significantly for very little money.

The horsepower race has attracted not only consumers but also the biggest automakers, who are locked in a battle to increase horsepower even on sedans and minivans.

For some people, he went on, it was important to enhance their mood, so they took antidepressants; but for people like him it was more important "to increase mental horsepower."

Colonial announces plans to increase horsepower on the mainline which would increase daily capacity by 144,000 barrels to 2.35 million barrels per day.

The newly developed Honda engine Type P07A 660cc SOHC 6 valve inline 3-cylinder with i-DSi of naturally aspirated (52PS) and Turbo (64PS) has increased horsepower.