Two things:
1) Carbon is super stiff. The wing shouldn't need stabilizers as compared to stock
2) Contact Seibon to see if their wing matches the original wing profile. You can even ask them the stabilizer question directly. They should know if theirs is an exact match or not. If its not an exact match it wont work as intended--you might be able to get it to work by shimming or filing, but i probably wouldnt bother.