Nismoid,
They have it ovaled to allow for better unber body clearance ,Guessing with speed humps etc, HPI do a similer thing where theyrun to smaller diamer pipes into one,
They look very cool but I so want one.
There must be a reason why the stuck to a bellmouth style too,maybe more of an applicable range of turbos.,with out the need to remove dividers etc.
There $693 - Delivered from Nengun, Not cheap that is for sure. But amazing quality.