Are diesel performance upgrades legal?

Yes, diesel performance upgrades are legal. However, it must be noted that the legality of these upgrades may vary depending on local and federal laws. Many diesel performance upgrades, such as aftermarket exhaust systems, cold air intakes, or performance tuners, are legal and compliant with emissions regulations in most areas. It is essential for customers to ensure that any modifications made to their diesel vehicles comply with local emissions laws and regulations. Furthermore, some performance upgrades, like turbocharging or nitrous oxide systems, may require additional permits or approvals depending on the jurisdiction. It is highly recommended to consult with a knowledgeable professional or check local regulations to ensure compliance before making any modifications to your vehicle.