Overclock is a performance-enhancing feature introduced in Asphalt 9: Legends (now known as Asphalt Legends Unite) that was added in the Italian Revolution Update and it works in a similar way to the Tuning Kit from Asphalt 8: Airborne, temporarily boosting all 4 stats and rank of the chosen car.
In order to activate the Overclock, one must collect Overclock Chips 
, which can obtained through TLEs and Bundles, being able to store 1000 at max.
A limited amount of cars (that will be switched once a new season starts) will be marked with the 
symbol, indicating that it is available to be overclocked. The overclock menu will be found in the Upgrade section.
The number of Overclock Chips required to overclock a car will vary depending on the class, once activated, the Overclock will be available for a specific amount of time.
v4.5.0[]
Example of a car available to be Overclocked
Post-v4.6.0[]
Overclock Menu
This update brought an Adjustment to this feature, switching from a fixed-timer to a 24-hour format and 2 options, activate for 1 day or a week.
Class D[]
- 1 day - 4 Chips
- 7 day - 21 Chips
Class C[]
- 1 day - 8 Chips
- 7 day - 42 Chips
Class B[]
- 1 day - 12 Chips
- 7 day - 64 Chips
Class A[]
- 1 day - 16 Chips
- 7 day - 85 Chips
Class S[]
- 1 day - 20 Chips
- 7 day - 105 Chips