diff --git a/include/config/item.h b/include/config/item.h
index 78324affea..36b2fe7d25 100644
--- a/include/config/item.h
+++ b/include/config/item.h
@@ -16,6 +16,7 @@
 #define I_SELL_VALUE_FRACTION           GEN_LATEST  // In Gen9+, items sell for 1/4 of their value instead of 1/2.
 #define I_PRICE                         GEN_LATEST  // Some items have varied in value across generations.
 #define I_BERRY_PRICE                   GEN_7       // Since Berries have become unplantable (Gen8+), their price has gone up.
+#define I_POWER_ITEM_BOOST              GEN_LATEST  // In Gen7+, Power Items grant 8 EVs instead of 4 EVs.
 
 // TM config
 #define I_REUSABLE_TMS          FALSE       // In Gen5-8, TMs are reusable. Setting this to TRUE will make all vanilla TMs reusable, though they can also be cherry-picked by setting their importance to 1.
diff --git a/src/data/items.h b/src/data/items.h
index 4ac253b152..bda247bf2b 100644
--- a/src/data/items.h
+++ b/src/data/items.h
@@ -20,6 +20,12 @@
     #define TYPE_BOOST_PARAM 10
 #endif
 
+#if I_POWER_ITEM_BOOST >= GEN_7
+    #define POWER_ITEM_BOOST 8
+#else
+    #define POWER_ITEM_BOOST 4
+#endif
+
 #define X_ITEM_STAGES (B_X_ITEMS_BUFF >= GEN_7) ? 2 : 1
 
 #define TREASURE_FACTOR (I_SELL_VALUE_FRACTION >= GEN_9) ? 2: 1
@@ -6067,7 +6073,7 @@ const struct Item gItems[] =
         .name = _("Power Weight"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("A hold item that\n"
                                        "promotes HP gain,\n"
                                        "but reduces Speed."),
@@ -6083,7 +6089,7 @@ const struct Item gItems[] =
         .name = _("Power Bracer"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("A hold item that\n"
                                        "promotes Atk gain,\n"
                                        "but reduces Speed."),
@@ -6099,7 +6105,7 @@ const struct Item gItems[] =
         .name = _("Power Belt"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("A hold item that\n"
                                        "promotes Def gain,\n"
                                        "but reduces Speed."),
@@ -6115,7 +6121,7 @@ const struct Item gItems[] =
         .name = _("Power Lens"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("Hold item that pro-\n"
                                        "motes Sp. Atk gain,\n"
                                        "but reduces Speed."),
@@ -6131,7 +6137,7 @@ const struct Item gItems[] =
         .name = _("Power Band"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("Hold item that pro-\n"
                                        "motes Sp. Def gain,\n"
                                        "but reduces Speed."),
@@ -6147,7 +6153,7 @@ const struct Item gItems[] =
         .name = _("Power Anklet"),
         .price = (I_PRICE >= GEN_9) ? 10000 : 3000,
         .holdEffect = HOLD_EFFECT_POWER_ITEM,
-        .holdEffectParam = 8,
+        .holdEffectParam = POWER_ITEM_BOOST,
         .description = COMPOUND_STRING("A hold item that\n"
                                        "promotes Spd gain,\n"
                                        "but reduces Speed."),