With our GTO fresh off the SuperFlow dyno and equipped with all our latest bolt-on goodies, it was time to mosey on over to TT Performance where proprietor Matt Sorian was able to take us in for our ...

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 ...

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 ...

At the peak of the muscle car era, the 1970 Pontiac GTO offered an innovative driver-controlled exhaust that boosted performance—and ruffled feathers. The Vacuum Operated Exhaust (VOE), initiated by a ...