We explore the idea of using finite automata to implement new constraints for local search (this is already a successful technique in constraint-based global search). We show how it is possible to maintain incrementally the violations of a constraint and its decision variables from an automaton that describes a ground checker for that constraint. We establish the practicality of our a... https://www.roneverhart.com/MagnaFlow-2005-2008-Pontiac-Grand-Prix-Street-Series-Cat-Back-Performance-Exhaust-System/