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You gain a non-addictive subdermal Turbo (chem) injector. This perk may be taken twice, with the second rank increasing the effect from 2 to 3 seconds and the uses per day from 5 to 10.— In-game description

Implant GRX is a perk in the Fallout: New Vegas add-on Old World Blues.


Taking this perk grants the use of a non-addictive drug that acts similar to Turbo: when used, it causes the player character to perceive the world where everything moves slower. The effect duration and number of doses provided can be increased by taking the second rank:

  • Rank 1 - 5 available doses every 24 hours; Duration of 2 (pre-Turbo) seconds per dose.
  • Rank 2 - 10 available doses every 24 hours; Duration of 3 (pre-Turbo) seconds per dose.


  • The drug replenishes in the Aid tab of the player character's inventory every 24 in-game hours.
  • The effects of multiple doses are cumulative.
  • The stated duration is for time before it has been slowed by the Turbo effect. As a result, the "real" duration is much longer.
  • When paired with the Chemist and Day Tripper perks, the rank 2 effect duration will last 8 seconds in real time with each use. Adding on Logan's Loophole will further increase the duration of each use (rank 1) to 16 seconds in real time.
    • Because the perk only becomes available at level 30, and Logan's Loophole locks the level cap at the same level, if one chooses to make it a trait, they will only be able to take the perk's first rank.
  • The Fast Times perk does not affect Implant GRX's duration.
  • Like all chems, the duration of Implant GRX will stack with multiple doses. This can result in a lengthy duration of slow motion by consuming many doses at once (up to 80 seconds in real time using all 10 doses with GRX rank 2, Day Tripper and Chemist).
  • Implant GRX cannot be added to a hotkey.
  • The effects of Turbo and Implant GRX cannot be stacked; if one uses a dose of Turbo and then immediately uses Implant GRX, the latter will override the former and the Turbo dose will be wasted.

Behind the scenes[]

The perk image is shared with the RobCo processor widget, a quest item in Fallout 3 as well as with all implant perks in Old World Blues. They also are the only perks that have no Vault Boy or Vault Girl included in the image.