According to your signature you seem to have a pretty nice/expensive setup.
Don't cheap out on the exhaust.
I wouldn't use mac garbage if you gave it to me for free.
Been there done that.
Couple options i can thing of.
A. Get a quality set of headers you want, then have the h and catback made by a good exhaust shop, some place that does mandrel bending or uses pieces of pre made pipe and weld bends and pieces together.
B. Call
Kooks.
Neither is going to be cheap, but at this point it doesn't exactly look like you are on a budget build.
My explorer has option A on it, catback only.
Since it uses a single pipe because of the spare tire i had a 3 inch done.
Cost about 400 that included a
magnaflow double walled tip and magnaflow muffler, and one pipe quality below the best stainless. (i forgot which is which)
Edit: One more thing, a few years back a company named asphalt jungle made a 3 inch kit, haven't see it for quite a while though.