My earlier plan was to put 3 pipes of exhaust port per-side just infront of the door where the engine side duct is, however after rear modification to the rear vents it looks like its was too large to ignore as it doesn't serve much purpose since there's no rear engine to vent out the thermal heat.  So instead of the original plan, all those exhaust pipe from the front engine are to be routed out to rear vents. So 3 pipes merge as one large Exhaust port per side, it will be in pairs.  I put it deep inside to make it looks stock.  Expected full chrome finishing when im doing the UV map later on.