The Goat was running an internally untouched LS1 that was still spewing gases through the stock exhaust manifolds and catalytic converters. Before even thinking of pulling a valve cover, we wanted to ...

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 ...

Interested in a daily driver that has 476 rwhp on tap, can idle like a stocker in traffic jams, run 11-second quarter-miles, and get 26 miles per gallon on the highway? Working with a 2004 GTO, Rick ...