In all honesty, I'm not very handy at all and I just installed my Gintani on my own. All parts were reused from the OEM exhaust. I haven't heard of people having issues with even regular old muffler shops installing their new exhausts, it really is a simple process. Plus, the dealership will charge an arm and leg for the cost of this, where you could do it yourself in as little as 3 hours. Up to you...
'11 BMW E92 ///M3 - ZCP and DCT
'13 Toyota Tundra - 4x4 Platinum CrewMax, 5.7l iForce V8