I haven't had any problems with the different intake manifold gaskets in my m117, but I'm not an authority on it.

I never got around to taking the bottom end of the intake apart to replace the 'donuts' joining the plenum to the runners, so I don't know, but I don't remember there being options when I got them from ******** AZ.

I price around, but there are times to just pay the piper and buy the expensive stuff, and times that you don't really have any idea what's better. Heck, half of the vendors I see don't want to say what they're selling in the first place, making it all that much more fun to try to figure out.

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-Josh
Testing the cheap Mercedes axiom, one bolt at a time...