QUOTE (Pollution @ Sep 21 2009, 01:50 PM)

While the above rules citation does in fact answer the question, I have a more in depth answer for you.
Cyber/Bioware do NOT add to your stats. You're not getting 2 extra points of logic, you're getting a dice pool bonus to logic.
It's not + Str from that Muscle Aug, it's + Dice to Strength pools.
At least, that's the way I always interpreted it. So you would not add any extra knowledges to your character from a Cerebral Enh. because it's not bestowing actual Logic points, but rather a dice pool bonus to Logic tests.
Dunno where I found that, but it's in SR4 somewhere.
Incorrect.
QUOTE (X-Kalibur @ Sep 21 2009, 01:55 PM)

That is actually incorrect. You are directly adding a modifier to the attribute in question as though it were higher. Thus if you have a Log 3 and Cerebral Boosters 1, your logic is 4, and increasing it to 5 costs karma as going from 4 - 5 and not from 3 - 4.
Incorrect.
QUOTE (Tymeaus Jalynsfein @ Sep 21 2009, 06:12 PM)

Can't remember, but does not Bioware (and Geneware?) have the same drawback... bioware provided an Inherent bonus tot he stat, and you raise it at the level of the new stat (so the example of Cerebral Booster would then be correct)... I am pretty sure that that is how it was in previous editions for Bioware...
Keep the Faith
Again, Incorrect.
Augmentation such as Cerebral Boosters increases the attribute directly, not provide a Dice Pool Modifier. Muscle Augmentation increases your Strength attribute, & thus all derived attributes (and base weight capacity). Muscle Toner increases your Agility attribute, & thus applies
before splitting your dice pool for two-weapon fighting (if it was a Dice Pool Modifier, it would apply separately to each split pool).
Despite being a direct increase to the attribute in question, you
never calculate the cost of advancement using the augmented value (single exception being the fucking retarded Increase Attribute Adept power). All advancement Karma costs are determined using the
base attribute value.