Mud flaps? Hmmm. Plan on taking the Mustang off-road?
Here's the deal: I have after-market General tires and Foose rims, and they are staggerd. The staggard rear wheels add bulk and beef to the rear profile, with the tires extending out beyond the car's body by about an inch.
Adding mud flaps eliminates all the benefits of having wide, staggerd wheels.
Leave the flaps for the boss Jeeps that actually go off-road. Me, I use my GPS to avoid potholes, lol.
Scot