Shop Jeep Grand Cherokee Exhaust System & Emission Control Components. Explore Jeep Grand Cherokee Exhaust System Parts. Order Jeep Grand Cherokee Exhaust System Kit. Maintaining optimal emissions performance in your Jeep Grand Cherokee is crucial for both environmental responsibility and vehicle longevity. Regularly inspecting and replacing air filters can prevent clogging and ensure efficient fuel combustion. Watch for warning signs like decreased fuel economy and increased exhaust smoke, which can signal the need for a new catalytic converter or oxygen sensor. When choosing replacements, opt for quality materials that match your model's specifications to enhance durability. Proper installation is key, so consult a professional to guarantee your Grand Cherokee runs cleaner and performs at its peak, keeping both the environment and your engine in check.