High frequency suppression causes this drive to appear red under boost.
Permanently upgrades an equipped Rare Sparrow to improve overall speed and durability.
Permanently upgrades an equipped Rare Sparrow to improve overall speed and durability.
― In-game description
A Stealth Drive increases both speed and durability of a Guardian's equipped rare or higher Sparrow and turns the boost contrail red. The upgrade is a one-use consumable item that transforms the equipped rare Sparrow into a legendary Sparrow. It can be purchased from Xûr.