arrowhead is totally right!!!
it's quite impossible that 18c is cheaper than 16a
18c come with LSD of cos ...
anyhow, to be frank, we are auto service centre too, we prefer to let the owners to find their own half cuts, cos we all can't guarantee how good the condition of the half cut
n in order for not letting the half cut shop to con us, the best way is pay the workshop, get warranty, less mess and save time ...
if you guys need more advice for HONDA modification, just let us know
we are the specialist for HONDA!!!