suspension

got a problem with my el falcon lowered it with K mac 2 inch lower springs all
round using KYB shocks its sits at a good hieght but the exhaust still hits the diff should i upgrade my shocks and make them stiffer out:

[LUXO_8]

nope.
your exhaust was probably not designed to be on a lowered car.. or perhaps the rubber mounts have stretched / sagged

if i were you id go see an exhaust shop and see about your options..

chances are they can modify the system to sit closer to the car body to clear the diff...

they were able to do it to mine

[sphell]

or else tie a big piece of rubber to the diff with some metal cable ties so you don't hear it hit anymore, cheaper and it works.