Carbon Fiber: Is is strong enough?

Ok, so my buggy is to heavy as I have already posted, I figured I could cut a bunch of weight by modifying the battery boxes but after the modifications I bearly get 1 to 1.5 oz of weight savings, so, what about carbon fiber shock mounts? are they strong enough for a 1/8 buggy? are they actually worth the weight savings? (carbon fiber is about 2/3rds as dense, so if the mounts are pretty heaving there is a decent amount of weight savings, but if they only weight 4oz maybe it isn't worth it.)
Thanks in advance for any info.