Explosion Amplifier increases the blast radius on an explosive weapon when equipped. This includes electric bolas's explosion, all survey charge tips, and rivets.

Trivia

• The Detonator's "special" upgrade in Dead Space 2 is similar to this attachment.
• Increases the Electrocution Module AoE radius, but also slightly reduces the electrical field's duration.
• Oddly enough, using this attachment with a Directed Ejection Field or Rail Accelerator tip on Survey Charge Core completely removes their explosion effect whilst their AoE seem to remain unchanged.