i have the factory gauge option and the boost is different in third gear from the rest why is that

 

Im not 100% sure but..
But the evo has 2 boost seting
at lower rpm our boost is set at 19.5 psi
at higer rpm it drops down to 16 psi

So im thinking it has to do something with the way u shift gear,
and it is not becasue of the 3rd gear itself.

 

is it 19.5 because in the magazine said its 18.6