Pipe Identification

[Rickrod3]

http://s910.photobucket.com/albums/a...6.jpg&newest=1

these pipes do not have a baffle.
Does anyone know what kind of pipes these are?
Are they considered open header Type?
I'm asking since I'm running lean using the jetting recommendations want to see if I need to go up one or two sizes.
BTW and running the stock air box and stock jetting.

Tia
Rick

[WMarshy]

Here is some recommendations... I would consider them open, they are short and have no baffle. They look like Mac headers, other Mac's Ive seen use a different style megaphone though, but I think those look better than the others. Some one should confirm and probably tell you exactly what jets you need.

[Lamric]

They look like Mac's with Turnout mufflers, check out more pics of them on this list of aftermarket exhausts for the XS1100