diff --git a/drivers/can/Kconfig.mcux b/drivers/can/Kconfig.mcux
index f97671bf613..6ccaad15e45 100644
--- a/drivers/can/Kconfig.mcux
+++ b/drivers/can/Kconfig.mcux
@@ -21,12 +21,21 @@ config CAN_MCUX_FLEXCAN_FD
 	help
 	  Enable support for CAN-FD capable NXP FlexCAN devices.
 
+config CAN_MAX_MB
+	int "Maximum number of message buffers for concurrent active instances"
+	default 16
+	depends on SOC_SERIES_S32K3_M7
+	range 1 96
+	help
+	  Defines maximum number of message buffers for concurrent active instances.
+
 config CAN_MAX_FILTER
 	int "Maximum number of concurrent active RX filters"
 	default 5
 	range 1 15 if SOC_SERIES_KINETIS_KE1XF || SOC_SERIES_KINETIS_K6X
 	range 1 13 if SOC_SERIES_IMX_RT && CAN_MCUX_FLEXCAN_FD
 	range 1 63 if SOC_SERIES_IMX_RT
+	range 1 96 if SOC_SERIES_S32K3_M7
 	help
 	  Defines maximum number of concurrent active RX filters
 
diff --git a/drivers/can/can_mcux_flexcan.c b/drivers/can/can_mcux_flexcan.c
index 974fda4ca09..fd754a184a5 100644
--- a/drivers/can/can_mcux_flexcan.c
+++ b/drivers/can/can_mcux_flexcan.c
@@ -49,14 +49,19 @@ LOG_MODULE_REGISTER(can_mcux_flexcan, CONFIG_CAN_LOG_LEVEL);
 #define RX_START_IDX 0
 #endif
 
+/* The maximum number of message buffers for concurrent active instances */
+#ifdef CONFIG_CAN_MAX_MB
+#define MCUX_FLEXCAN_MAX_MB CONFIG_CAN_MAX_MB
+#else
+#define MCUX_FLEXCAN_MAX_MB FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(0)
+#endif
+
 /*
  * RX message buffers (filters) will take up the first N message
  * buffers. The rest are available for TX use.
  */
 #define MCUX_FLEXCAN_MAX_RX (CONFIG_CAN_MAX_FILTER + RX_START_IDX)
-#define MCUX_FLEXCAN_MAX_TX \
-	(FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(0) \
-	- MCUX_FLEXCAN_MAX_RX)
+#define MCUX_FLEXCAN_MAX_TX (MCUX_FLEXCAN_MAX_MB - MCUX_FLEXCAN_MAX_RX)
 
 /*
  * Convert from RX message buffer index to allocated filter ID and
@@ -1246,7 +1251,7 @@ static int mcux_flexcan_init(const struct device *dev)
 	data->dev = dev;
 
 	FLEXCAN_GetDefaultConfig(&flexcan_config);
-	flexcan_config.maxMbNum = FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(0);
+	flexcan_config.maxMbNum = MCUX_FLEXCAN_MAX_MB;
 	flexcan_config.clkSrc = config->clk_source;
 	flexcan_config.baudRate = clock_freq /
 	      (1U + data->timing.prop_seg + data->timing.phase_seg1 +