Bolting on a set of headers has long been one of the first moves a hot rodder makes in search of more performance. Traditionally, factory iron log exhaust manifolds are set aside in favor of a pair of ...

Having run our header test in the last issue on the normally aspirated version of the GT1000 motor, we were anxious to retest the motor with some boost. You will remember that the 5.4L GT1000 was ...

We often try our best to get the most performance possible from our engines. In the search for more power, we often remove exhaust manifolds and swap them out for a set of headers. Available in ...