Aimed primarily at those who disable emissions control equipment like DPF system’s the new MOT reg’s  include a more thorough physical check of the DPF system, so no  just cutting a hole /hatch in the DPF filter body to remove its filter media,  you’ll need to open & weld it back along a  seam. There’s still no check on its or the  EGR systems efficiency much beyond a basic smoke check. Other MOT regs update include a lit or malfunctioning MIL lamp being a fail, & physically checking EGR is connected  & present.

Making these systems reliable is the only way to thwart the desire to delete these systems though as hugely expensive & problematic repair options continue to override the public health concerns of owners with afflicted vehicles.  We could all go electric i suppose, but  then i’d have nothing much left to tune. I couldn’t even find DRIVE on my mates Tesla last week, so bollox to actually remapping it.