2010 Cat C-15 SDP Question

@Cat sdp I have an 08 sdp. Some modifications have been done but would like to change a few things around. Would like some input from someone more knowledgeable on these motors. Could you give me a call sometime 870-577-5782 thanks Rick

 

Is the flange size different going to the arp from 08 sdp turbo? Would like to replace with downpipe and put in pyro and get ride of the arp trashcan. Would the housing need to be changed to get the correct flange size? Someone told me they thought they were different size. Any help would be appreciated!