These implants should work correctly: the Bavakar Cardio Package does +2 Constitution, the Bavakar Reflex Enhancement does +2 Dexterity, the Bavakar Memory Chip does +2 Intelligence, they all have unique icons and they all cost 2000 credits. Whilst the Bavakar packages do work, I have found a few items which one could consider 'broken' in a way...
A common pattern with armor items for example is that the item ID will be called something like "g_a_class4001" and each time the value goes up (4001, 4002, 4003 etc.) the armor gets stronger and more expansive. Though this doesn't seem to be the case with the cut Cinnagar Weave Armor item which has a Defense Bonus of 6, a price of 2000 and the item ID "g_a_class4004" whereas the Massassi Ceremonial Armor item which has a Defense Bonus of 5, a price of 3000 and the item ID "g_a_class4005".
Those two items are inconsistent, if it were consistent I believe the Massassi Ceremonial Armor should have a Defense Bonus of 7 instead of 5... though obviously that's just my educated guess so this might be a feature of the Unofficial K1CP Tweak Pack instead of RC-K1CP. The reason I bring this up is because the Bavakar packages are entirely consistent with the other implants, the +1 Attribute Implants cost 1000 credits, the +2 Bavakar Implants cost 2000 credits, the +3 Attribute Implants cost 7500 and the +4 Attribute Implants cost 15000. The jump in price between the +2 and +3 Attribute Implants is quite steep though it does make sense considering how much stronger a +3 in Attributes is when compared to the +2.
And one final thing about inconsistent stats for cut items, the cut Cinnagar Plate Armor and Mandalorian Armor both have the EXACT same stats with a Defense Bonus of 10 and a Sonic Resistance 25 even though the Cinnagar Plate Armor cost 4000 credits and the Mandalorian Armor costs 9000 credits. This is made worse by the fact that Mandalorian Armor is a class 8 (g_a_class8004) armor whilst the class 9 (g_a_class9003) Mandalorian Battle Armor with a Defense Bonus of 11 costs 4000 credits.
But to actually answer your question; the Bavakar Reflex Enhancement shall drop from one of the Kashyyyk Dark Jedi. The Bavakar Cardio Package actually already drops from Sasha the Selkath if you kill her, I may add a 2nd Cardio Package so Light Side players may obtain this item. And finally, I do not have any evidence at this time to prove that the Bavakar Memory Chip was intended to drop in-game like I can the Reflex Package... I'll decide at a later date an appropriate area in the game where this item may be found. I hope to pick a location that makes sense, so that when the player realizes it's a restored item they'll go "Huh, I never noticed!"