Does anyone know anything about these?

looks like these
http://www.mercruiserparts.com/Show_...iser+System%29

These are off a 420

Boat Anchors! Yeah, 420 exhaust. I have another set in the barn off a fountain if you need another set for twins.

So I take there junk? I know someone who was trying to sell a new complete set for $400 (but has one bad pipe cracked at flange, would have to be fixed) and a use complete set for $200. Would they be worth it for that price or still no

very bad design unless you like water in your motor,merc would sell you a set of gils for dirt cheap to get them off the 420 engines back then,we replaced quite a few sets back then

I saw the one pipe that had the cracked flange and I could picture in my mind water coming in the engine the way it was cracked.

My 88 Formula came with them, and you are correct, Merc sold me complete Gil setups for $750 per engine when the boat was 2 years old.