Forget Midas, buy OE or OEM pipes and parts. I suggest getting stainless OE, it will last 10 yrs or more. Get it done right once with quality parts. It will cost a little more upfront, but be worth it years from now.
That free muffler is costing you a fortune in time and trips to the shop. Get quality parts and quality installation, and you will not see an exhaust tech for many more years.
Search this site for other's opinions on this. Most of us agree; stainless aftermarket, OE, or OEM is the way to go.