No matter how many times we test them, it still amazes us how easy it is to make power with GM's LS series of engines. Even something as ordinary as a high-mileage 5.3L will respond to boost, and do ...

When two equal turbochargers work independently, it's parallel. If a small turbocharger operates at lower rpm, then a larger one at higher rpm, it's sequential.

Automakers are leaning hard on twin turbos to squeeze more power from smaller engines, promising big performance without a ...