What could be a result if internal baffles or diffusers in an exhaust system fail?

When internal baffles or diffusers in an exhaust system fail, the primary consequence is a restricted exhaust gas flow. These components play a critical role in directing and managing the flow of exhaust gases as they exit the engine. Internal baffles help to reduce noise and turbulence, while diffusers are designed to optimize flow efficiency.

If these components fail, it can lead to irregular exhaust flow patterns, which can create back pressure in the system. Back pressure hampers the engine's ability to expel exhaust gases efficiently. This restricted flow can subsequently affect engine performance, potentially leading to decreased power and reduced efficiency in combustion. Therefore, when baffles or diffusers malfunction, one of the most significant outcomes is indeed the restricted flow of exhaust gases, which can compromise the overall operation of the engine.