- Decreased trim provides a 7mm screw and T20 screw. Get rid of and pull down tricky. Not necessary to take out decreased trim for 2018's. Does the digital dash obtain the oil pressure signal through the PP gauges or will it get it straight from the CAN bus? Detroit https://reidnicum.ampedpages.com/the-fact-about-digital-dash-mustang-that-no-one-is-suggesting-59098885