Cars unable to use 8th Gear

So I got GP 4 2016 mod no-CSM installed, but all the cars are unable to get to the 8th gear and it can only get to 7th gear.
But i've seen a gameplay on youtube which able to get to use the 8th gear, here's the video: [youtu.be]
(Notice how the HUD goes to 8th gear, while mine is just maxed at 7th)

Anyone got a solution for this? Thanks.

look at the drive out of the pit. There is no first gear to simulate 8th gears.

Yep i've read that it is impossible to literally use the 8th gear, so the hud/speedometer tricks it by using 2nd-8th gear and excluding the 1st one.
But the problem that i have is the hud/speedometer only goes from 2nd to 7th gear. Is there a way to fix it?

Did you select the 7th gear into your car configuration window?

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Excalibur Wrote:
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> Did you select the 7th gear into your car configuration window?

How to do that?

Got it fixed. Turned out it was because i haven't activate the 7th gear in car setup.
Thank you for all the helps.