I sure haven't, but if you do, I would like to know how it works out. If you buy them, please do a dyno test before and after to see if there is any gain in horsepower. And, if it is not asking too much, please weigh them and the manifolds you are replacing and let us know the difference in weight.
I would love to have a set of those on my car but I don't have the "Cojones" to test them out.
Best of luck, and please keep us posted.
my first concern would be IF you can swap the headers with engine in his place..... not rare that you have to lift the engine a bit or some other tricks.
Don't know about a BMW V8 ....
No good for my car, LHD only.
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