Get Pontiac Grand Am Exhaust Converters Replacement Cost & Pontiac Grand Am Exhaust Catalytic Converter. Find Pontiac Grand Am Exhaust Converters Price. Maintaining the catalytic converter of your Pontiac Grand Am ensures peak performance and longevity, effectively reducing emissions. To extend its life, regularly inspect your exhaust system for leaks and maintain a healthy engine tune-up schedule. Signs that you might need a replacement include a noticeable decrease in fuel efficiency and a persistent check engine light. When selecting a new catalytic converter, choose between universal and direct-fit models, with the latter offering a seamless installation experience. High-quality materials, such as stainless steel, promise durability and resilience, making them a smart investment for eco-conscious drivers looking to enhance their vehicle's efficiency online.