Engines & Components

It's a relatively easy way to add some power to your high-performance car.

Fuel pumps are the heart of a running vehicle. So they must be kept clean of sludge and dirt.

Eventually, the clutch for your manual vehicle might need some love. A clutch kit has all the necessary parts.

If you have basic electrical wiring skills, a DIY upgrade to add cruise control can happen in an hour or two.

Intercoolers got their name from jet-engine designers who created a means to cool the air between two jet turbines.

Thefts of catalytic converters are on the rise. What can you do to protect your car?

Is there “no replacement for displacement?” Or go small with a mighty mouse engine? The debate rages on.

Enthusiasts say the CVT gearbox is slow, boring and soulless. But there are reasons why we should reconsider.

The alternator provides power to your car's energy-thirsty electronics. So it's important to know how to test an alternator. Here's how.

Make an automotive style statement by upgrading to a set of custom exhaust tips. The options are endless: from hearts to flame-throwers.

A catalytic converter cleaner is a first step before replacing the catalyst. Catalytic converters are essential for emissions reduction.

It’s not enough that your radiator is in good shape. You also need to also make sure that the radiator fan is doing its job.

Here's what you need to know about a radiator upgrade: performance radiators, double-pass, downflow versus crossflow, and more.

Attaching a scoop to an opening in the hood allows more air to enter the engine. The effect of a hood scoop is a boost of horsepower.

One common cause for "Check Engine" dashboard warning light is a bad O2 sensor. That's an easy DIY fix.

With a DCT or double clutch, there’s practically no downtime. The next gear is already preselected for when the transmission shifts.

A supercharger is one of the fastest and most accessible ways to add a couple of hundred ponies.

If it’s done right, the result is an intoxicating noise.

A few quick and easy maintenance procedures can greatly reduce your chances of getting stuck on a cold day.

Freezing temperatures can make diesel fuel too thick to circulate. Gas engines can face problems when temperatures drop below zero.

Most states test for three toxic gases: hydrocarbons, carbon monoxide, and oxides of nitrogen.