Looks really clean! I just have one concern; Where you mounted the wastegate isn't ideal. The wastegate won't be nearly as efficient if it were placed downstream of both manifolds.
Thank you
Im not saying its the best place for a high hp combo but its a proven to work kit from kbracing, ive been using it for months now and so far im very happy with the way it works, there are actually a couple of 1000+hp setups around with that kit