Dual exhaust on 350x?

[p26575r16]

anyone ever run dual exhaust on a 350x. If so any pics and how did it perform. Thank you

[brapp]

i have used a 400ex with dual exaust made on it, it wasnt too hard to fab up. and i woudl immagign it would run pretty food as logn a su have equap backpresure on oth valves.