Hot bodies exhaust

[Aussie Steve]

Ok guys its time to think about replacements for the twin cannons sitting out the back of my new bike. I am leaning towards a set of hot bodies GP replica megaphones and wondered if anyone here had fitted some. They are the short ones that finnish just after the rider pegs and are remarkably quiet for such short pipes.

I will be asking the seller about tuning and the like but there is nothing in the sales pitch that states you need do anything more than fit them and ride off into the sunset. I suspect it would be a mistake to assume nothing else needs doing and have a fall back position of the Yoshimura R77 slipons. Neither set of pipes require the cat or oxygen sensor to be removed so I am hoping the sales blurb is correct.

I do have an original set of gen1 pipes that I am going to cut up and experiment with...anyone do this??

Thanks for any help.