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So I guess this is an axle back just like the SP2? Doesnt matter because you can easily make it a cat-back using a nice Y-Pipe and some custom pipes to it.
I think its an axle back, and the midpipe as well. Just based on price. Since you can get a true dual system from greddy for about 1000, I imagine that about 600 is fair for a midpipe and muffler system.