diff --git a/eos/effects/boosterarmorhppenalty.py b/eos/effects/boosterarmorhppenalty.py
index c2db78c40..8acfcf6ad 100644
--- a/eos/effects/boosterarmorhppenalty.py
+++ b/eos/effects/boosterarmorhppenalty.py
@@ -3,8 +3,12 @@
 # Used by:
 # Implants from group: Booster (12 of 48)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Armor Capacity"
+
+# Attribute that this effect targets
+attr = "boosterArmorHPPenalty"
 
 def handler(fit, booster, context):
-    fit.ship.boostItemAttr("armorHP", booster.getModifiedItemAttr("boosterArmorHPPenalty"))
+    fit.ship.boostItemAttr("armorHP", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boosterarmorrepairamountpenalty.py b/eos/effects/boosterarmorrepairamountpenalty.py
index ac06a9c22..5f556908b 100644
--- a/eos/effects/boosterarmorrepairamountpenalty.py
+++ b/eos/effects/boosterarmorrepairamountpenalty.py
@@ -5,9 +5,13 @@
 # Implants named like: Mindflood Booster (3 of 4)
 # Implants named like: Sooth Sayer Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Armor Repair Amount"
+
+# Attribute that this effect targets
+attr = "boosterArmorRepairAmountPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredItemBoost(lambda mod: mod.item.group.name == "Armor Repair Unit",
-                                  "armorDamageAmount", booster.getModifiedItemAttr("boosterArmorRepairAmountPenalty"))
+                                  "armorDamageAmount", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boostercapacitorcapacitypenalty.py b/eos/effects/boostercapacitorcapacitypenalty.py
index 3a8351ac4..087b591f5 100644
--- a/eos/effects/boostercapacitorcapacitypenalty.py
+++ b/eos/effects/boostercapacitorcapacitypenalty.py
@@ -4,8 +4,12 @@
 # Implants named like: Blue Pill Booster (3 of 5)
 # Implants named like: Exile Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Cap Capacity"
+
+# Attribute that this effect targets
+attr = "boosterCapacitorCapacityPenalty"
 
 def handler(fit, booster, context):
-    fit.ship.boostItemAttr("capacitorCapacity", booster.getModifiedItemAttr("boosterCapacitorCapacityPenalty"))
+    fit.ship.boostItemAttr("capacitorCapacity", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boostermaxvelocitypenalty.py b/eos/effects/boostermaxvelocitypenalty.py
index 0bc951e9e..9059fe0f4 100644
--- a/eos/effects/boostermaxvelocitypenalty.py
+++ b/eos/effects/boostermaxvelocitypenalty.py
@@ -3,8 +3,12 @@
 # Used by:
 # Implants from group: Booster (12 of 48)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Velocity"
+
+# Attribute that this effect targets
+attr = "boosterMaxVelocityPenalty"
 
 def handler(fit, booster, context):
-    fit.ship.boostItemAttr("maxVelocity", booster.getModifiedItemAttr("boosterMaxVelocityPenalty"))
+    fit.ship.boostItemAttr("maxVelocity", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boostermissileexplosioncloudpenaltyfixed.py b/eos/effects/boostermissileexplosioncloudpenaltyfixed.py
index 778e4b28c..270f53fc3 100644
--- a/eos/effects/boostermissileexplosioncloudpenaltyfixed.py
+++ b/eos/effects/boostermissileexplosioncloudpenaltyfixed.py
@@ -4,9 +4,13 @@
 # Implants named like: Exile Booster (3 of 4)
 # Implants named like: Mindflood Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Missile Explosion Radius"
+
+# Attribute that this effect targets
+attr = "boosterMissileAOECloudPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredChargeBoost(lambda mod: mod.charge.requiresSkill("Missile Launcher Operation"),
-                                    "aoeCloudSize", booster.getModifiedItemAttr("boosterMissileAOECloudPenalty"))
+                                    "aoeCloudSize", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boostermissileexplosionvelocitypenalty.py b/eos/effects/boostermissileexplosionvelocitypenalty.py
index e81a9fc96..e9857e13c 100644
--- a/eos/effects/boostermissileexplosionvelocitypenalty.py
+++ b/eos/effects/boostermissileexplosionvelocitypenalty.py
@@ -3,9 +3,13 @@
 # Used by:
 # Implants named like: Blue Pill Booster (3 of 5)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Missile Explosion Velocity"
+
+# Attribute that this effect targets
+attr = "boosterAOEVelocityPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredChargeBoost(lambda mod: mod.charge.requiresSkill("Missile Launcher Operation"),
-                                    "aoeVelocity", booster.getModifiedItemAttr("boosterAOEVelocityPenalty"))
+                                    "aoeVelocity", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boostermissilevelocitypenalty.py b/eos/effects/boostermissilevelocitypenalty.py
index a4f2d1205..5ffe02dd8 100644
--- a/eos/effects/boostermissilevelocitypenalty.py
+++ b/eos/effects/boostermissilevelocitypenalty.py
@@ -4,9 +4,13 @@
 # Implants named like: Crash Booster (3 of 4)
 # Implants named like: X Instinct Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Missile Velocity"
+
+# Attribute that this effect targets
+attr = "boosterMissileVelocityPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredChargeBoost(lambda mod: mod.charge.requiresSkill("Missile Launcher Operation"),
-                                    "maxVelocity", "boosterMissileVelocityPenalty")
+                                    "maxVelocity", attr)
diff --git a/eos/effects/boostershieldcapacitypenalty.py b/eos/effects/boostershieldcapacitypenalty.py
index b2c5ed801..8cf5d85c3 100644
--- a/eos/effects/boostershieldcapacitypenalty.py
+++ b/eos/effects/boostershieldcapacitypenalty.py
@@ -3,8 +3,12 @@
 # Used by:
 # Implants from group: Booster (12 of 48)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Shield Capacity"
+
+# Attribute that this effect targets
+attr = "boosterShieldCapacityPenalty"
 
 def handler(fit, booster, context):
-    fit.ship.boostItemAttr("shieldCapacity", booster.getModifiedItemAttr("boosterShieldCapacityPenalty"))
+    fit.ship.boostItemAttr("shieldCapacity", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boosterturretfalloffpenalty.py b/eos/effects/boosterturretfalloffpenalty.py
index 84f2e2145..f79674987 100644
--- a/eos/effects/boosterturretfalloffpenalty.py
+++ b/eos/effects/boosterturretfalloffpenalty.py
@@ -4,9 +4,13 @@
 # Implants named like: Drop Booster (3 of 4)
 # Implants named like: X Instinct Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Turret Falloff"
+
+# Attribute that this effect targets
+attr = "boosterTurretFalloffPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredItemBoost(lambda mod: mod.item.requiresSkill("Gunnery"),
-                                  "falloff", booster.getModifiedItemAttr("boosterTurretFalloffPenalty"))
+                                  "falloff", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boosterturretoptimalrangepenalty.py b/eos/effects/boosterturretoptimalrangepenalty.py
index d70275c29..e4f9d7e4c 100644
--- a/eos/effects/boosterturretoptimalrangepenalty.py
+++ b/eos/effects/boosterturretoptimalrangepenalty.py
@@ -5,9 +5,13 @@
 # Implants named like: Mindflood Booster (3 of 4)
 # Implants named like: Sooth Sayer Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Turret Optimal Range"
+
+# Attribute that this effect targets
+attr = "boosterTurretOptimalRange"
 
 def handler(fit, booster, context):
     fit.modules.filteredItemBoost(lambda mod: mod.item.requiresSkill("Gunnery"),
-                                  "maxRange", booster.getModifiedItemAttr("boosterTurretOptimalRange"))
+                                  "maxRange", booster.getModifiedItemAttr(attr))
diff --git a/eos/effects/boosterturrettrackingpenalty.py b/eos/effects/boosterturrettrackingpenalty.py
index 6f268fdc4..0e6025b66 100644
--- a/eos/effects/boosterturrettrackingpenalty.py
+++ b/eos/effects/boosterturrettrackingpenalty.py
@@ -4,9 +4,13 @@
 # Implants named like: Exile Booster (3 of 4)
 # Implants named like: Frentix Booster (3 of 4)
 type = "boosterSideEffect"
-activeByDefault = False
 
+# User-friendly name for the side effect
+displayName = "Turret Tracking"
+
+# Attribute that this effect targets
+attr = "boosterTurretTrackingPenalty"
 
 def handler(fit, booster, context):
     fit.modules.filteredItemBoost(lambda mod: mod.item.requiresSkill("Gunnery"),
-                                  "trackingSpeed", booster.getModifiedItemAttr("boosterTurretTrackingPenalty"))
+                                  "trackingSpeed", booster.getModifiedItemAttr(attr))
diff --git a/eos/saveddata/booster.py b/eos/saveddata/booster.py
index aa5d6bfcb..413661e86 100644
--- a/eos/saveddata/booster.py
+++ b/eos/saveddata/booster.py
@@ -76,9 +76,13 @@ class Booster(HandledItem, ItemAttrShortcut):
     def sideEffects(self):
         return self.__sideEffects or []
 
+    @property
+    def activeSideEffectEffects(self):
+        return [x.effect for x in self.sideEffects if x.active]
+
     def __getSideEffects(self):
         """Returns list of BoosterSideEffect that are loaded with data"""
-        return [BoosterSideEffect(effect) for effect in self.item.effects.values() if effect.type and 'boosterSideEffect' in effect.type]
+        return [BoosterSideEffect(effect) for effect in self.item.effects.values() if effect.isType("boosterSideEffect")]
 
     @property
     def itemModifiedAttributes(self):
@@ -111,19 +115,14 @@ class Booster(HandledItem, ItemAttrShortcut):
             return
         if not self.active:
             return
+
         for effect in self.item.effects.itervalues():
             if effect.runTime == runTime and \
-                    (effect.isType("passive") or effect.isType("boosterSideEffect")) and \
-                    effect.activeByDefault:
+                    (effect.isType("passive") or effect.isType("boosterSideEffect")):
+                if effect.isType("boosterSideEffect") and effect not in self.activeSideEffectEffects:
+                    continue
                 effect.handler(fit, self, ("booster",))
 
-        # Legacy booster code, not fully implemented
-        '''
-        for sideEffect in self.iterSideEffects():
-            if sideEffect.active and sideEffect.effect.runTime == runTime:
-                sideEffect.effect.handler(fit, self, ("boosterSideEffect",))
-        '''
-
     @validates("ID", "itemID", "ammoID", "active")
     def validator(self, key, val):
         map = {
diff --git a/eos/saveddata/boosterSideEffect.py b/eos/saveddata/boosterSideEffect.py
index 71014c3a7..6f08c0904 100644
--- a/eos/saveddata/boosterSideEffect.py
+++ b/eos/saveddata/boosterSideEffect.py
@@ -55,9 +55,12 @@ class BoosterSideEffect(object):
 
     @property
     def name(self):
-        return self.__effect.getattr('displayName') or self.__effect.handlerName
+        return "{0}% {1}".format(
+            self.booster.getModifiedItemAttr(self.attr),
+            self.__effect.getattr('displayName') or self.__effect.handlerName,
+        )
 
     @property
-    def attrPrefix(self):
-        return self.__effect.getattr('prefix')
+    def attr(self):
+        return self.__effect.getattr('attr')