I don't have one personally, but those kinda look like the "bananna" Grubee pipes, but with a built in muffler. Which is good if you want to keep a low profile. Straight pipes are loud as heck!
Those pipes will make more power at higher rpm due to the shorter header length, so you know. T4B
has them around here too.
, and Arrow
make some nice pipes. But shipping to Stockholm could add up...