www.sharkwerks.com The build-up of the 3.9L 500hp naturally aspirated GT3 engine by SharkWerks & EVOMS and a look behind the black magic that is Porsche Tuning with the EVOMSit software. Dyno testing, tuning footage as well as track testing footage at Willow Springs Raceway by Cort Wagner. Comparison with a stock 3.6L GT3RS and a cameo appearance by a 2010 997 GT3....