Boxing mods maybe?, they usually have Increased joint speed especially for the upper half of body.
You can request mods here If You want something specific making, (some will charge TC)
Unfortunately I have no knowledge of body modding yet, So I cannot help you this time... sorry.
What did you need it for?
Edit : Scrap that I found it, Its called [
lightning fighters].
Last edited by blun7y; Jun 8, 2015 at 10:10 AM.
Reason: found it