I am using a 4.6 donor from a 2001 Mustang Cobra on my Mk IV. There is a requirement to replace the stock oil pan with a shallow pan such as the Canton 15-736 rear sump. I will be using an under car exhaust, so my question is "will the 2 1/4" to 2 1/2" of lowered ground clearance mitigate the need for the low profile pan?"