Slithery D |
A +2 enhancement has an implantation value of 2, a +4 enhancement has an implantation value of 4, and a +6 enhancement has an implantation value of 8. You can't have more implantation value of parts than your Constitution or Intelligence score. If you put too much in it doesn't work and you take a -4 penalty on all saving throws.
http://paizo.com/pathfinderRPG/prd/technologyGuide/cybertech.html