Got pinging and detonation? If so, ready your ride for an EGR valve. This little valve cools the combustion chambers to prevent pinging and detonation. Enjoy added engine protection and better drivability by bolting an EGR valve onto Edelbrock EGR Adapters & Plates. These spacers bolt to your ride’s intake manifold and provide an EGR port. This is a perfect option to adapt intake manifolds that don’t have an EGR port or where pinging or detonation is a concern. 1-year warranty.