[0w40X1]

Originally Posted by MazdaFan

I read something weird at a website called topspeed. They claim xDrive28i has an overboost function that increases torque to 369 lb.ft for short periods of acceleration, but sDrive28i doesn't have this feature.

I am not sure where they get this information but it is the first and only time that I heard such a thing. Does anyone have further information on this topic?

Thanks,

MazdaFan

Hey, I have 2 track cars now: MY Mazda RX8 and my X1 s28i.

So that's why my scanguage II shows 18psi boost, then settles down to 12 psi!