450SL Tightening Exhaust Manifold Bolts

Any suggestions on what type of wrench is best for tightening the right bank exhaust manifold's lower 4 nuts? I know the size - I just can't seem to get on them with any wrench that I have.
Until now, I thought I had a good tool assortment, but it seems one never has them all. I have a so-called manifold wrench, but it is not metric and I cannot seem to find a metric one. I wonder if Mercedes has a special wrench for that job?
Thanks for help anyone can send my way.
Leonard
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On 2004-10-10 17:18:16 -0700, snipped-for-privacy@stearns.com (Leonard) said:

I Don't know what that car looks like, but I usually prefer a six sided box wrench for that job...
Sorry if that won't fit or isn't helpful.
Marty
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