Amazing service. I took my car to Midas in Dublin to have them run a diagnostic on my EGR system (check the valve, modulator and Vacuum Switch Valve). P0401. They claimed to have done it and said the modulator needed replacement. I replaced it and nothing changed. After arguing with them to check it again (to no avail), I took my car to Walt. He checked EVERYTHING, and found that it was the VSV that needed replacement. No arguments, just straight up professionalism and class. If you want someone to do it right the first time call WALT. No BS.