Both drivers, who were caught on Sunday, will be reported to the Procurator Fiscal.
They were among 36 motorists the mobile safety camera unit found to be speeding on the road between 6pm and 8pm.
East safety camera unit manager Andy Jones said: “Our primary aim is to improve safety on Scotland’s roads and encourage drivers to keep within the speed limit at all times.
“We would rather not have to be writing to these drivers but the harsh reality is that in the event of a collision, motorists who speed are more likely to cause death or serious injury not only to themselves, but to their passengers or other innocent road users and this is particularly the case on the motorway where normal speeds are so much higher.
“All 36 drivers will be hearing from us very soon, 34 drivers will be issued with a Conditional Offer which is the minimum £100 fine and 3 penalty points. The two drivers who reached 95mph and 99mph will be reported to the Procurator Fiscal and could find themselves facing much higher penalties.
“It is unacceptable any of these drivers thought that their driving was either safe or appropriate. People may not have been expecting us to be out on a Sunday evening, but our attendance reinforces the flexibility and value of mobile Safety Camera Units.”