Sequential Turbocharging. Real. Patented. Proven. Small-turbo response. No wastegates or electronics needed. Big-turbo power. The Hlava STM delivers small-turbo response and big-turbo power...without wastegates or electronics. Turbo Lag Elimination: Built in Indiana & Illinois Dyno-verified See How It Works View Results COMING SOON Problem ⟶ Solution Turbocharging has always been a trade-off. Small turbos =