MXR 78 distortion. As the name implies this pedal nails all of those dirty, distorted 70's sounds. From Ramones to Judas Priest and everything in between. : r/guitarpedals
MXR 78 Custom Badass Distortion – Thomann España
MXR 78 Custom Badass Distortion
Custom Badass '78 Distortion - MXR - Max Guitar – Max Guitar