RE: Exhaust Bolts on the Volcano S30?
from looking at the schmatic on redcat's site, It doesnt look like they sell those bolts. It doesnt even seem they come with the exhaust manifold...but you could call them and check on that.
If you have a decent hardware store nearby, you can take the truck in. Most likely, its a metric machine thread. Find the section with those type of screws and find one that is the right thickness. Then its just a matter of getting the lenght right. It will take alittle work, but will cost less to buy the 2 bolts that way.