diff --git a/firmware/gen_config_common.sh b/firmware/gen_config_common.sh
index e83b0b70e6..dd1c9279c0 100755
--- a/firmware/gen_config_common.sh
+++ b/firmware/gen_config_common.sh
@@ -23,6 +23,7 @@ set_board_file BOARD_TABLES_FILE "${BOARD_DIR}/board_tables.ini"
 set_board_file BOARD_PANELS_FILE "${BOARD_DIR}/board_panels.ini"
 set_board_file BOARD_INDICATORS_FILE "${BOARD_DIR}/board_indicators.ini"
 set_board_file BOARD_GAUGES_FILE "${BOARD_DIR}/board_gauges.ini"
+set_board_file BOARD_CONSTANTS_EXTENSIONS_FILE "${BOARD_DIR}/board_constants_extensions.ini"
 set_board_file BOARD_DIAG_PANEL1_FILE "${BOARD_DIR}/board_diag_panel1.ini"
 set_board_file BOARD_DIAG_PANEL2_FILE "${BOARD_DIR}/board_diag_panel2.ini"
 
@@ -38,6 +39,7 @@ COMMON_GEN_CONFIG="
  -readfile BOARD_MENU_FROM_FILE ${BOARD_MENU_FILE} \
  -readfile BOARD_VE_MENU_FROM_FILE ${BOARD_VE_MENU_FILE} \
  -readfile BOARD_TABLES_FROM_FILE ${BOARD_TABLES_FILE} \
+ -readfile BOARD_CONSTANTS_EXTENSIONS_FROM_FILE ${BOARD_CONSTANTS_EXTENSIONS_FILE} \
  -readfile BOARD_DIAG_PANEL1_FROM_FILE ${BOARD_DIAG_PANEL1_FILE} \
  -readfile BOARD_DIAG_PANEL2_FROM_FILE ${BOARD_DIAG_PANEL2_FILE} \
  -readfile BOARD_PANELS_FROM_FILE ${BOARD_PANELS_FILE} \
diff --git a/firmware/tunerstudio/tunerstudio.template.ini b/firmware/tunerstudio/tunerstudio.template.ini
index 78229e6338..5b3bfef225 100644
--- a/firmware/tunerstudio/tunerstudio.template.ini
+++ b/firmware/tunerstudio/tunerstudio.template.ini
@@ -348,6 +348,8 @@ enable2ndByteCanID = false
 	readOnly = device_uid2
 	readOnly = device_uid3
 
+@@BOARD_CONSTANTS_EXTENSIONS_FROM_FILE@@
+
 	defaultValue = gearCountArray, -1 0 1 2 3 4 5 6 7 8
 	readOnly = gearCountArray
 	defaultValue = solenoidCountArray, 1 2 3 4 5 6 7 8