Competition. When it comes to our cars, this word is usually associated with how they perform, either in a straight line or through the corners. This kind of competition is the foundation of hot ...

On a 5.7 HEMI, shorty headers promise easy bolt-on power without turning your daily driver into a race-only project. The real question is how much horsepower they actually add compared with stock ...

Installing headers on a 4.6 Mustang isn't the most fun job in the world. Be prepared to remove accessories and to lift the engine off its mounts to get the job done. Take your time and use the proper ...

A few years ago while building our 1968 Plymouth Valiant project car, we decided to swap in a big-block Mopar engine based on a low-deck 383/400 B-series big-block wedge. The big-block Chrysler was ...

When utilizing long-tube headers, the oxygen sensor is moved farther away from the exhaust port of the cylinder head. This can cause driveability problems in some applications. If your sensors are ...