2to1

does anyone built exhaust collector 2to1 mod in tuono 2006? My collector have broken right pipe, behind but near the lambda. So i'm thinking why not cut that pipe and weld that. On left pipe will be single short exhaust. But what with egaine performance?

I was wondering if it were possible to rebend the intermediate pipes from the akra system back to orig. Mine are bent up after being hit from behind. One can has some dings and both CF straps are toast. My Main thought no is to reshape the pipes...can I do that or am I screwed, I had the system...