Hello folks. I'm finally looking into improving my SLK55's exhaust sound. I was about to search for a deal on Magnaflow's xpipe (#10791) but learned that they're made of 400 series stainless steel. I live in the east coast so T304 is more ideal to me. I saw something on eBay for $40 shipped and something on Amazon for $60 shipped for 2.5" T304 stainless x-pipe. Anybody have any experience with either or other T304 stainless, non-Magnaflow, x-pipe?