Has anyone install a GPR full system or slip-ons on an 06 S2R800? How does it sound? From the picture it looks to hang a bit low, is that the case? The hanger also looks a bit weak? How does the bike run after the install? I guessing a power commander was needed with the full system but how about the slipon.

Seriously? Nobody?

i have the GPR Titanium Slipons with some marving cat eliminator pipes on mine
they sound good,as far a PC goes i don't know if i need one yet ,my bike was running a bit rich originally ,had it adjusted with Marving and Cored pipes and it run great (and still does) before i got the GPR's.

With a Choped Tail they do look a bit long ,During the winter i plan on have them cut back about 6inches.
for the hanger ,i haven't had any problems it keeps the pipes in place and thats all i need it to do.

Oncycle had a good deal on them they go up to $800 on Ebay.
hope this helps