i dunno, i have the 2 x flexi bits from the heat exchangers to the y piece, i also have the y piece, then i have a piece of 70mm guttering downpipe that comes right up to just behind the front seats thru the crossmember, i need the bit that goes from there to the bottom of the totem pole, or the complete hard pipe from y piece to totem if thats what i need to do?? RHD also if that makes a difference....