Variable geometry exhaust systems prohibition

In Simple Terms

F1 teams cannot use exhaust systems that change shape or geometry during a race. The only exception is wastegates, which are allowed. This rule prevents teams from gaining unfair advantages by adjusting their exhaust performance.

• Variable geometry exhaust systems are completely prohibited in F1
• Variable turbine and variable nozzle turbine designs are not allowed
• Wastegates are the only exception permitted under this regulation
• This ensures all teams use fixed exhaust configurations throughout the season