What makes Exciter by Judas Priest notable?

'Exciter' is notable for its heavy guitar work and is considered one of the early examples of speed metal, influencing countless bands in the genre. The track 'Dissident Aggressor' gained further prominence when covered by Slayer in 1998, showcasing its lasting impact on metal music. Released on February 10, 1978, 'Exciter' marked Judas Priest's fourth studio album, following their previous release, 'Sad Wings of Destiny.' At this point in their career, the band was transitioning into a more defined heavy metal sound, solidifying their influence within the genre as they began to gain international recognition.