Our latest dyno chart shows how Tapout Tuning is advancing the LF4 platform to levels never imagined before. We are running E55 fuel and produce more than 700 whp all the way from 5,000 to 7,000 rpm! This combination includes all our latest components, including a couple beta parts that haven’t yet been released to the public. Rotating assembly is still factory and cylinder heads have not been ported. Details coming soon. Stay tuned!