Okay

code/modules/mob/living/taste.dm

@@ -43,7 +43,7 @@
 	.=..()
 	if ((from.pH > 12.5) || (from.pH < 1.5))
 		to_chat(src, "<span class='warning'>You taste chemical burns!</span>")
-		T.adjustTongueLoss(src, 4)
+		T.applyOrganDamage(5)
 	if(istype(T, /obj/item/organ/tongue/cybernetic))
 		to_chat(src, "<span class='notice'>Your tongue moves on it's own in response to the liquid.</span>")
 		say("The pH is appropriately [round(from.pH, 1)].")
@@ -52,13 +52,13 @@
 		switch(from.pH)
 			if(11.5 to INFINITY)
 				to_chat(src, "<span class='warning'>You taste a strong alkaline flavour!</span>")
-				T.adjustTongueLoss(src, 1)
+				T.applyOrganDamage(1)
 			if(8.5 to 11.5)
 				to_chat(src, "<span class='notice'>You taste a sort of soapy tone in the mixture.</span>")
 			if(2.5 to 5.5)
 				to_chat(src, "<span class='notice'>You taste a sort of acid tone in the mixture.</span>")
 			if(-INFINITY to 2.5)
 				to_chat(src, "<span class='warning'>You taste a strong acidic flavour!</span>")
-				T.adjustTongueLoss(src, 1)
+				T.applyOrganDamage(1)
 
 #undef DEFAULT_TASTE_SENSITIVITY

code/modules/research/designs/medical_designs.dm

@@ -702,6 +702,28 @@
 	category = list("Medical Designs")
 	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL
 
+/datum/design/cybernetic_ears
+	name = "Cybernetic Ears"
+	desc = "A pair of cybernetic ears."
+	id = "cybernetic_ears"
+	build_type = PROTOLATHE | MECHFAB
+	construction_time = 30
+	materials = list(/datum/material/iron = 250, /datum/material/glass = 400)
+	build_path = /obj/item/organ/ears/cybernetic
+	category = list("Misc", "Medical Designs")
+	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL
+
+/datum/design/cybernetic_ears_u
+	name = "Upgraded Cybernetic Ears"
+	desc = "A pair of upgraded cybernetic ears."
+	id = "cybernetic_ears_u"
+	build_type = PROTOLATHE | MECHFAB
+	construction_time = 40
+	materials = list(/datum/material/iron = 500, /datum/material/glass = 500, /datum/material/silver = 500)
+	build_path = /obj/item/organ/ears/cybernetic/upgraded
+	category = list("Misc", "Medical Designs")
+	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL
+
 /////////////////////
 ///Surgery Designs///
 /////////////////////

code/modules/research/techweb/all_nodes.dm

@@ -517,8 +517,17 @@
 	display_name = "Cybernetic Organs"
 	description = "We have the technology to rebuild him."
 	prereq_ids = list("adv_biotech")
-	design_ids = list("cybernetic_heart", "cybernetic_liver", "cybernetic_liver_u", "cybernetic_lungs", "cybernetic_lungs_u", "cybernetic_tongue")
-	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 2500)
+	design_ids = list("cybernetic_ears", "cybernetic_heart", "cybernetic_liver", "cybernetic_lungs", "cybernetic_tongue")
+	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 1000)
+	export_price = 5000
+
+/datum/techweb_node/cyber_organs_upgraded
+	id = "cyber_organs_upgraded"
+	display_name = "Upgraded Cybernetic Organs"
+	description = "We have the technology to upgrade him."
+	prereq_ids = list("cyber_organs")
+	design_ids = list("cybernetic_ears_u", "cybernetic_heart_u", "cybernetic_liver_u", "cybernetic_lungs_u")
+	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 1500)
 	export_price = 5000
 
 /datum/techweb_node/cyber_implants

code/modules/surgery/organs/ears.dm

@@ -116,4 +116,24 @@
 	name = "tin ears"
 	desc = "The robust ears of a bronze golem. "
 	damage_multiplier = 0.1 //STRONK
-	bang_protect = 1 //Fear me weaklings. 
+	bang_protect = 1 //Fear me weaklings.
+
+/obj/item/organ/ears/cybernetic
+	name = "cybernetic ears"
+	icon_state = "ears-c"
+	desc = "a basic cybernetic designed to mimic the operation of ears."
+	damage_multiplier = 0.9
+	organ_flags = ORGAN_SYNTHETIC
+
+/obj/item/organ/ears/cybernetic/upgraded
+	name = "upgraded cybernetic ears"
+	icon_state = "ears-c-u"
+	desc = "an advanced cybernetic ear, surpassing the performance of organic ears"
+	damage_multiplier = 0.5
+This conversation was marked as resolved by ExcessiveUseOfCobblestone
+
+/obj/item/organ/ears/cybernetic/emp_act(severity)
+	. = ..()
+	if(. & EMP_PROTECT_SELF)
+		return
+	damage += 40/severity

code/modules/surgery/organs/lungs.dm

@@ -73,27 +73,28 @@
 
 //TODO: lung health affects lung function
 /obj/item/organ/lungs/onDamage(damage_mod) //damage might be too low atm.
+	cached_damage = damage
 	if (maxHealth == INFINITY)
 		return
-	if(damage+damage_mod < 0)
-		damage = 0
+	if(cached_damage+damage_mod < 0)
+		cached_damage = 0
 		return
 
-	damage += damage_mod
-	if ((damage / maxHealth) > 1)
+	cached_damage += damage_mod
+	if ((cached_damage/ maxHealth) > 1)
 		to_chat(owner, "<span class='userdanger'>You feel your lungs collapse within your chest as you gasp for air, unable to inflate them anymore!</span>")
 		owner.emote("gasp")
 		SSblackbox.record_feedback("tally", "fermi_chem", 1, "Lungs lost")
 		//qdel(src) - Handled elsewhere for now.
-	else if ((damage / maxHealth) > 0.75)
+	else if ((cached_damage / maxHealth) > 0.75)
 		to_chat(owner, "<span class='warning'>It's getting really hard to breathe!!</span>")
 		owner.emote("gasp")
 		owner.Dizzy(3)
-	else if ((damage / maxHealth) > 0.5)
+	else if ((cached_damage / maxHealth) > 0.5)
 		owner.Dizzy(2)
 		to_chat(owner, "<span class='notice'>Your chest is really starting to hurt.</span>")
 		owner.emote("cough")
-	else if ((damage / maxHealth) > 0.2)
+	else if ((cached_damage / maxHealth) > 0.2)
 		to_chat(owner, "<span class='notice'>You feel an ache within your chest.</span>")
 		owner.emote("cough")
 		owner.Dizzy(1)
@@ -540,4 +541,4 @@
 
 /obj/item/organ/lungs/yamerol/on_life()
 	..()
-	damage += 2 //Yamerol lungs are temporary
+	damage += 2 //Yamerol lungs are temporary

code/modules/surgery/organs/tongue.dm

@@ -30,7 +30,7 @@
 
 /obj/item/organ/tongue/proc/handle_speech(datum/source, list/speech_args)
 
-/obj/item/organ/tongue/proc/adjustTongueLoss(mob/living/carbon/M, damage_mod)
+/obj/item/organ/tongue/proc/onDamage(damage_mod)
 	if (maxHealth == "alien")
 		return
 	if (maxHealth == "bone")