Standing on the passenger side with the bonnet open looking at the right side of my throttle body i have the one pipe sticking out and the 2nd hole is blanked...
My question is why do some have the one pipe and some two? (i think the 2nd connects to the brake servo)
Also I have a spare throttle body with the two holes, how do i blank the unwanted hole so i can fit it to my car? Can i get a blanking plate or some thing?

