Can cutting off cat cause engine knock?

Cutting off a catalytic converter can lead to engine knock due to increased exhaust backpressure and altered exhaust flow dynamics. The catalytic converter plays a crucial role in managing emissions and maintaining optimal engine performance. Removing it can disrupt the air-fuel mixture and lead to combustion issues, which may result in knocking. Additionally, the absence of the converter can cause the engine to run hotter, further exacerbating knocking problems.