Implant GRX

Implant GRX is a perk

Effects
Implant GRX functions as a non-addictive drug with the same effects as Turbo: slowing down the Courier's surroundings to give them more time to act. It is accessed from the inventory in the Aid section of the Pip-Boy, with the supply replenishing every 24 in-game hours. This perk can be taken twice, for enhanced effects: The effects of multiple doses are cumulative.
 * Rank 1: it can be used five times a day, and lasts two (pre-Turbo) seconds per dose.
 * Rank 2: it can be used 10 times a day, and lasts three (pre-Turbo) seconds per dose.

Behind the scenes
The image for this perk is the same as the icon for the RobCo processor widget, a quest item in Fallout 3.