Synergy 5221-A - 2011+ Jeep JK 2/4 Door Front Cage Kit - Manual (Page 31)

41. Mark the portions of the dash to be trimmed appropriately. Take your time and
cleanly trim the dash until the tube will cleanly fall into place as described below.
42. With the dash trimmed, test fit the A-pillar tube 522103-01. Note that the A-pillars
are L & R side specific and are labeled as such. Be sure to fit the correct side, L is for
driver side.