I have a 60/63 turbo with no o2 housing, and therefor no wastegate flapper. So, I was thinking about using an external wastegate, however I don't want to spend a lot of money. Are there any external wastegates I can use from the junkyard? What about other internal wastegates I can get at the junkyard that won't point in the wrong direction (and do I need to get just the part with the flapper, or the actuator too)?

 

mercedes have an external wastegate

 

I know the porsche 944 turbos have them as well, I own one and was thinking of taking it off my car and putting it on my honda
do you know the exact mercedes models that have it?
what about other german cars (other porsches, maybe audis)?