I got around to installing the SL1’s in my lows today. I don’t know if there is a difference in some ‘18 Driver headlight housing but there was NO WAY these would install without trimming on both the light and the inner part of the housing as shown on Stage 3’s site. Since you have to trim, you have to tear apart the whole front...... They are bright but I seem to have a slight flicker has anyone else had this issue?