Preference Of X Pipe Manufacturer?

I never owned one. However I found this YouTube. I'm not sure if this is what you are after...

 

Cant see the point as its just another restriction...and wrong design and too far in the system to be of any real advantage.

 

I've just fitted a TEC link pipe on my Street Twin and love it. Good quality and service from TEC. The bike feels far better and it sounds great on stock pipes.

 

Maybe triumph have finally looked into pulse reversion tuning of the exhaust and the X pipe is the answer.....but cant really see it as it could be done with a simple diameter change rather than X pipe.....i suspect its probably more do do with emission balancing than performance.

 

I wonder if Prof Xaviers produces much X dottle?