Intermix cowling
An intermix cowling[1] or thrust intermix cowling[2] was a starship component[1] that required adequate shielding.[2] Gideon and Keeta visited Centares to purchase a new intermix cowling since their ship, the Independent Class, would melt through used ones.[1]
Sources
"Shape-shifters" – Star Wars Adventure Journal 12- Secrets of the Sisar Run (as thrust intermix cowling)