diff --git a/opendbc_repo b/opendbc_repo
index 68c602106f..dc56629a11 160000
--- a/opendbc_repo
+++ b/opendbc_repo
@@ -1 +1 @@
-Subproject commit 68c602106ff8c0608059f27a9d764050a1e7ee37
+Subproject commit dc56629a11114b5f13a06a9d0a6248751394ed01
diff --git a/selfdrive/car/card.py b/selfdrive/car/card.py
index d78846f639..76ac4e36d1 100755
--- a/selfdrive/car/card.py
+++ b/selfdrive/car/card.py
@@ -26,7 +26,6 @@ from openpilot.selfdrive.car.helpers import convert_carControlSP, convert_to_cap
 
 from openpilot.sunnypilot.mads.helpers import set_alternative_experience, set_car_specific_params
 from openpilot.sunnypilot.selfdrive.car import interfaces as sunnypilot_interfaces
-from openpilot.sunnypilot.selfdrive.car.hkg_specific_params import set_hyundai_long_tune_flag
 
 REPLAY = "REPLAY" in os.environ
 
@@ -110,10 +109,10 @@ class Car:
 
       self.CI = get_car(*self.can_callbacks, obd_callback(self.params), experimental_long_allowed, num_pandas, cached_params, fixed_fingerprint)
       sunnypilot_interfaces.setup_car_interface_sp(self.CI.CP, self.CI.CP_SP, self.params)
+      sunnypilot_interfaces.set_hyundai_long_tune_flag(self.CI.CP_SP, self.params)
       self.RI = interfaces[self.CI.CP.carFingerprint].RadarInterface(self.CI.CP, self.CI.CP_SP)
       self.CP = self.CI.CP
       self.CP_SP = self.CI.CP_SP
-      set_hyundai_long_tune_flag(self.CP)
 
       # continue onto next fingerprinting step in pandad
       self.params.put_bool("FirmwareQueryDone", True)
@@ -130,7 +129,6 @@ class Car:
     # mads
     set_alternative_experience(self.CP, self.params)
     set_car_specific_params(self.CP, self.CP_SP, self.params)
-    set_hyundai_long_tune_flag(self.CP)
 
     # Dynamic Experimental Control
     self.dynamic_experimental_control = self.params.get_bool("DynamicExperimentalControl")
diff --git a/sunnypilot/selfdrive/car/hkg_specific_params.py b/sunnypilot/selfdrive/car/hkg_specific_params.py
deleted file mode 100644
index a04cc99437..0000000000
--- a/sunnypilot/selfdrive/car/hkg_specific_params.py
+++ /dev/null
@@ -1,18 +0,0 @@
-from opendbc.car import structs
-from opendbc.sunnypilot.car.hyundai.values import HyundaiFlagsSP
-from openpilot.common.params import Params
-
-class HyundaiLongTuneParams:
-    @staticmethod
-    def param(params, key: str) -> bool:
-        val = params.get(key)
-        if isinstance(val, bytes):
-            val = val.decode("utf-8")
-        return val in ["1", "2"]
-
-def set_hyundai_long_tune_flag(CP: structs.CarParams):
-    params = Params()
-    if HyundaiLongTuneParams.param(params, "HyundaiLongTune"):
-        CP.flags |= HyundaiFlagsSP.HKGLONGTUNING.value
-    if params.get_bool("HyundaiSmootherBraking"):
-        CP.flags |= HyundaiFlagsSP.HKGLONGTUNING_BRAKING.value
diff --git a/sunnypilot/selfdrive/car/interfaces.py b/sunnypilot/selfdrive/car/interfaces.py
index 375ce7fa7f..9975142757 100644
--- a/sunnypilot/selfdrive/car/interfaces.py
+++ b/sunnypilot/selfdrive/car/interfaces.py
@@ -33,6 +33,20 @@ def setup_car_interface_sp(CP: structs.CarParams, CP_SP: structs.CarParamsSP, pa
           CP.radarUnavailable = False
 
 
+def set_hyundai_long_tune_flag(CP_SP: structs.CarParamsSP, params):
+  val = params.get("HyundaiLongTune")
+  if isinstance(val, bytes):
+    val = val.decode("utf-8")
+  if isinstance(val, str) and ',' in val:
+    val_list = [v.strip() for v in val.split(',')]
+  else:
+    val_list = [val]
+
+  if any(item in ["1", "2"] for item in val_list):
+    CP_SP.flags |= HyundaiFlagsSP.HKGLONGTUNING.value
+  if params.get_bool("HyundaiSmootherBraking"):
+    CP_SP.flags |= HyundaiFlagsSP.HKGLONGTUNING_BRAKING.value
+
 def initialize_car_interface_sp(CP: structs.CarParams, CP_SP: structs.CarParamsSP, params, can_recv: CanRecvCallable,
                                 can_send: CanSendCallable):
   if CP.brand == 'hyundai':