Is there some reason you can't do it yourself? It's really one of the easiest jobs you could do on a car. Mine took me about 40 min by myself, taking my sweet time. A socket set and some jack stands would be cheaper than taking it somewhere. What a shop would charge you depends on the area. Where I live I'd guess 100 bucks. They usually won't waste thier time unless they're going to charge that much around here. As for the system you bought. Looks like a good price. I don't know how it will sound. To me mandrel bent 304 is mandrel bent 304, I imagine it will last you a long time.