diff --git a/firmware/controllers/actuators/boost_control.cpp b/firmware/controllers/actuators/boost_control.cpp
index e30dcced3e..1e6ee74dd2 100644
--- a/firmware/controllers/actuators/boost_control.cpp
+++ b/firmware/controllers/actuators/boost_control.cpp
@@ -34,6 +34,7 @@ void BoostController::init(IPwm* pwm, const ValueProvider3D* openLoopMap, const
 void BoostController::resetLua() {
 	luaTargetAdd = 0;
 	luaTargetMult = 1;
+	luaOpenLoopAdd = 0;
 }
 
 void BoostController::onConfigurationChange(pid_s* previousConfiguration) {
@@ -84,9 +85,10 @@ expected<percent_t> BoostController::getOpenLoop(float target) {
 
 	efiAssert(OBD_PCM_Processor_Fault, m_openLoopMap != nullptr, "boost open loop", unexpected);
 
-	openLoopPart = m_openLoopMap->getValue(rpm, tps.Value);
+	openLoopPart = luaOpenLoopAdd + m_openLoopMap->getValue(rpm, tps.Value);
 
 #if EFI_TUNER_STUDIO
+	// todo: why do we still copy this data point?
 	engine->outputChannels.boostControllerOpenLoopPart = openLoopPart;
 #endif
 
diff --git a/firmware/controllers/lua/lua_hooks.cpp b/firmware/controllers/lua/lua_hooks.cpp
index 4bce3761b9..3bb679bae7 100644
--- a/firmware/controllers/lua/lua_hooks.cpp
+++ b/firmware/controllers/lua/lua_hooks.cpp
@@ -733,14 +733,18 @@ void configureRusefiLuaHooks(lua_State* l) {
 	});
 
 #if EFI_BOOST_CONTROL
-	lua_register(l, "setBoostAdd", [](lua_State* l) {
+	lua_register(l, "setBoostTargetAdd", [](lua_State* l) {
 		engine->boostController.luaTargetAdd = luaL_checknumber(l, 1);
 		return 0;
 	});
-	lua_register(l, "setBoostMult", [](lua_State* l) {
+	lua_register(l, "setBoostTargetMult", [](lua_State* l) {
 		engine->boostController.luaTargetMult = luaL_checknumber(l, 1);
 		return 0;
 	});
+	lua_register(l, "setBoostDutyAdd", [](lua_State* l) {
+		engine->boostController.luaOpenLoopAdd = luaL_checknumber(l, 1);
+		return 0;
+	});
 #endif // EFI_BOOST_CONTROL
 #if EFI_IDLE_CONTROL
 	lua_register(l, "setIdleAdd", [](lua_State* l) {