I have STS .30 they not bad, just had to be really patient with the breaking in and take the head aluminum shim out after.....I heard the picco .28s are great but demand is on the rise so they are like CEN diffs, out of control in price.

the savage diffs dont go as quickly as the Cen ones and all local shops will have hpi stuff over cen.


+1 on the picco .28

Heyy just my opinion, for a savage, if your going to race, id go with a Novarossi PLUS .28-7T/RT
even if your not racing this motor would be awesome. here are some specs:

http://www.novarossi.it/content_uk/p...t-rt-specs.htm