which is the showing a picture of the rear end and arrows either side.
sometimes it is orange and some times its red.
Ace pipes run above rear diff and have a rubber flexi section to accommodate the ability of the suspension to go up and down. This will be why your lights are on . Stick on new pipes and get system bled. In my opinion discos are far far better with ace fitted. Do you have seven seats? If so you may not have insurance if air sus removed, Land rover never made a 7 seater with coils and many insurance companys will not accept the downgrading of the suspension system.