I have a 2011 Td4 gs but it has a SD4 engine ! every where I look says that the Td4 is 150 hp and the Sd4 is 190 hp, the air intake pipe is same as Sd4 different from Td4 and in V5 emissions are 185 as Td4 is 165, so I think the Td4 was made with both set ups, is there any one on here who can...