Back in our March '06 issue, we installed a bevy of bolt-ons to our project 2005 GTO for a 34 rear-wheel horsepower gain. Included in that story was a quality set of Stainless Works' 1.75-inch headers ...

To say that our 2005 GTO is one bad mofo would be an understatement. Starting out with an incredibly stock yet strong-running '05 LS2, our Project Head Poncho has proven to be a consistent and ...

Intake enhancements are only as good as the exhaust allows them to be. All the air and fuel in the world on the intake side won't make more power if the exhaust system can't pump out the by-products ...

General Motors engineers on both sides of the globe have redesigned the dual exhaust system of the Australian Holden Monaro coupe to give the upcoming 2004 Pontiac GTO derivative an exhaust note said ...