With theft on the rise and California’s emission laws tightening, having a functioning catalytic converter is more critical than ever. Jim Mathews Jr. and the team take a careful, no-nonsense approach—inspecting your system, identifying any performance issues, and installing a high-quality, CARB-compliant replacement that fits your make and model. We work with both private customers and insurance claims, ensuring a smooth process from start to finish. When you visit our Yuba City shop, you’re not just getting parts—you’re getting service that’s personal, local, and built on trust. Whether you drive a compact car, SUV, or work truck, we’ll help you pass your smog test and protect your investment with top-tier parts and expert installation. Whether you're restoring a classic or modifying a modern machine, our custom exhaust solutions deliver the perfect balance of power, tone, and style.