I haven't really thought this out, maybe somebody could give me some pros and or cons. How would it react if you ran your headers part way back and the one on the left hand side you made a Bend that would connect it 2 the crossover on my 80G. In short, connect the left side exhaust to the right side via the crossover pipe and exiting through the right side muffler. Problems, feasibility? Would there be a performance issue by reducing the pipe diameter on the left pipe?