When it comes to engine performance, especially a turbocharged one, there are no better modifications than ones that improve the breathing capacity of the motor ...

Spark plugs play a pivotal role in how your vehicle operates, but will upgrading to performance spark plugs increase ...

Diesel engines already have a growl to them, but if you want to take it to the next level, here are five ways you can do it -- no matter your budget.

The 5.9 Cummins is said to be one of the most reliable diesel engines, but that doesn't mean it can't benefit from upgrades.

We take a close look at performance upgrades for the Camaro V-6 engine, from basic bolt-ons to computer tuning. If you think you need an LS3, think again!

Sometimes gaining knowledge about "why" or "how" certain engine modifications work can lead to a clearer understanding about related changes that can also be helpful. For example, I benefitted a ...

There are several performance mods on the market that will increase horsepower, but then there are others that will solely elevate your driving experience.

Colder air is more dense than hot air and can produce more power. Finally, for the enthusiast on a budget, a cold-air intake is one of the least expensive performance modifications you can make.

Google's PMax modification request form update includes faster implementation notifications and the ability to make multiple changes at once.

Operators are incorporating engine improvements to gain better performance and cut costs, and that trend may be increasing this year as the financial condition of airlines improves. As Bob Barton ...

The modification includes an engine performance improvement package that will eliminate more than 20 shop visits a year due to extended time on wing and will save the customer about $29 million a ...