Not only do headers do wonders to give you a sinister sound at idle and wide open throttle, but performance gains are normally quite substantial when swapping in some aftermarket pipes. Dynatech wants ...

Owners of current-generation, heavy-duty GM trucks powered by the naturally aspirated 6.0-liter V-8 can pick up some extra horsepower with a set of headers and intermediate exhaust piping from ...

Get our GM news straight to your inbox. We'll send you one or two emails a day with the latest GM news coverage. It's totally free.