what is the difference between the oem 5.7l dt header and the mopar performance cherokee 6.4l header? the mopar performace chart says these cherikee headers fir the 5.7 but i cant find any pictures of the oem 5.7l dt header to compare them. i can get a set of the 6.5l headers and down pipe with cats for basically free but if the headers are similar it doesnt make much sense to swap them.