Anyone else have a Dual type exhaust?

[304-Pedal-Cycles]

Hello everyone. I posted pics of the bike Im building on my page, and I was wondering if anyone else out there has done a semi dual exhaust system like mine and if so can I see how you did it? I'm open to suggestions for my next build. Also wondering what ppl think of it?

 

[Rebel Riders MB]

it looks really cool , it fits your bike design well! now that there is two exhaust's how is the back pressure? does it effect engine performance?

 

[304-Pedal-Cycles]

Haven't even started it yet. Still working on it. Gotta get a few more parts for it