Ensure long-term oil pressure stability in your Gen IV LS engine with the Michigan Motorsports Oil Pan Oil Pressure Relief Valve Plug. Designed for performance and reliability, this plug eliminates the factory secondary relief valve — a known weak point prone to clogging and causing pressure drops, especially after AFM, DOD, or VVT systems are converted out. This plug is built from high-quality steel and includes a crush washer for a leak-free seal. It installs directly into the rear of the oil pan and should be torqued to 22 lb-ft for optimal sealing. Whether you're performing an LS swap, building a boosted application, or finishing a full AFM conversion, this component is a simple but critical upgrade to protect your engine's oiling system.