4 into 4 exhausts for Rickman, advice please

Hi to all,

Thinking of getting rid of my X-pipe and going back to a classic 4 into 4 on my Rickman or even a Ze-cross 2into2 design. I have attached a couple of pics, there is a company is japan that makes the standard set and also a high Yoshimura replica race set (although both kidneys will need to be sold). Anyone used any of these vaiants with modified engine? well ported head MTC pistions Andrews copy PSP 3X cams etc. Let me know your thoughts.

Thanks

I have no experience with either, but that 4 into 4 system REALLY looks trick to me. It gets my vote! Ed

Well I like the black 4 into 4 on the z1,that 4 into 2 is cool looking also though.
What are you going to do with your old pipe?