diff --git a/boards/arm/imxrt/teensy-4.x/Kconfig b/boards/arm/imxrt/teensy-4.x/Kconfig
index 9b330f66afa..74faef1da76 100644
--- a/boards/arm/imxrt/teensy-4.x/Kconfig
+++ b/boards/arm/imxrt/teensy-4.x/Kconfig
@@ -24,4 +24,10 @@ config TEENSY_41
 
 endchoice # Board configuration
 
+config IMXRT_FLEXCAN3_AS_CAN0
+	bool "Initialize CAN3 bus as can0"
+	---help---
+		This configuration option ensures that if more that one CAN bus is set on
+		that CAN 3 (with FD capability) will be initialized as can0.
+
 endif
diff --git a/boards/arm/imxrt/teensy-4.x/configs/pikron-bb/defconfig b/boards/arm/imxrt/teensy-4.x/configs/pikron-bb/defconfig
index 7f2b586b67f..fb63dbaca12 100644
--- a/boards/arm/imxrt/teensy-4.x/configs/pikron-bb/defconfig
+++ b/boards/arm/imxrt/teensy-4.x/configs/pikron-bb/defconfig
@@ -9,6 +9,7 @@
 # CONFIG_NSH_DISABLE_DATE is not set
 # CONFIG_NSH_DISABLE_PRINTF is not set
 # CONFIG_NSH_DISABLE_TRUNCATE is not set
+CONFIG_ALLOW_GPL_COMPONENTS=y
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="teensy-4.x"
 CONFIG_ARCH_BOARD_TEENSY_4X=y
@@ -31,11 +32,6 @@ CONFIG_CANUTILS_CANDUMP=y
 CONFIG_CANUTILS_CANSEND=y
 CONFIG_CAN_FD=y
 CONFIG_CLOCK_MONOTONIC=y
-CONFIG_DEBUG_ERROR=y
-CONFIG_DEBUG_FEATURES=y
-CONFIG_DEBUG_FULLOPT=y
-CONFIG_DEBUG_SYMBOLS=y
-CONFIG_DEBUG_WARN=y
 CONFIG_DEV_LOOP=y
 CONFIG_DEV_ZERO=y
 CONFIG_DRIVERS_VIDEO=y
@@ -58,7 +54,11 @@ CONFIG_IDLETHREAD_STACKSIZE=2048
 CONFIG_IMXRT_ENET=y
 CONFIG_IMXRT_ENET_NRXBUFFERS=16
 CONFIG_IMXRT_ENET_NTXBUFFERS=8
+CONFIG_IMXRT_FLEXCAN1=y
+CONFIG_IMXRT_FLEXCAN2=y
 CONFIG_IMXRT_FLEXCAN3=y
+CONFIG_IMXRT_FLEXCAN3_AS_CAN0=y
+CONFIG_IMXRT_FLEXCAN_TXMB=1
 CONFIG_IMXRT_LPSPI4=y
 CONFIG_IMXRT_LPUART1=y
 CONFIG_IMXRT_SNVS_LPSRTC=y
@@ -128,9 +128,8 @@ CONFIG_RAM_START=0x20200000
 CONFIG_READLINE_CMD_HISTORY=y
 CONFIG_RR_INTERVAL=10
 CONFIG_SCHED_CPULOAD=y
+CONFIG_SCHED_CPULOAD_EXTCLK=y
 CONFIG_SCHED_LPWORK=y
-CONFIG_SCHED_TICKLESS=y
-CONFIG_SCHED_TICKLESS_ALARM=y
 CONFIG_SCHED_USER_IDENTITY=y
 CONFIG_SCHED_WAITPID=y
 CONFIG_SERIAL_TERMIOS=y
@@ -147,6 +146,6 @@ CONFIG_SYSTEM_PING6=y
 CONFIG_SYSTEM_PING=y
 CONFIG_SYSTEM_TEE=y
 CONFIG_TEENSY_41=y
-CONFIG_USEC_PER_TICK=10
+CONFIG_USEC_PER_TICK=1000
 CONFIG_USER_ENTRYPOINT="nsh_main"
 CONFIG_VIDEO_FB=y
diff --git a/boards/arm/imxrt/teensy-4.x/src/imxrt_flexcan.c b/boards/arm/imxrt/teensy-4.x/src/imxrt_flexcan.c
index 8d08c464c8a..729ce7fe2a8 100644
--- a/boards/arm/imxrt/teensy-4.x/src/imxrt_flexcan.c
+++ b/boards/arm/imxrt/teensy-4.x/src/imxrt_flexcan.c
@@ -50,6 +50,19 @@
 int imxrt_can_setup(void)
 {
   int ret;
+
+#ifdef CONFIG_IMXRT_FLEXCAN3_AS_CAN0
+# ifdef CONFIG_IMXRT_FLEXCAN3
+  ret = imxrt_caninitialize(3);
+  if (ret < 0)
+    {
+      canerr("ERROR: Failed to get CAN interface\n");
+      return -ENODEV;
+    }
+
+# endif
+#endif
+
 #ifdef CONFIG_IMXRT_FLEXCAN1
   /* Call arm_caninitialize() to get an instance of the CAN interface */
 
@@ -70,7 +83,8 @@ int imxrt_can_setup(void)
     }
 
 #endif
-#ifdef CONFIG_IMXRT_FLEXCAN3
+#ifndef CONFIG_IMXRT_FLEXCAN3_AS_CAN0
+# ifdef CONFIG_IMXRT_FLEXCAN3
   ret = imxrt_caninitialize(3);
   if (ret < 0)
     {
@@ -78,6 +92,7 @@ int imxrt_can_setup(void)
       return -ENODEV;
     }
 
+# endif
 #endif
   UNUSED(ret);
   return OK;