They are heavy bastards!!! I'll atest to that! I just sent an email to revolution marine asking if they know the weight savings of going from stock to their exhaust. If I ever hear back from them, I'll post it here... Has to be a considerable savings in weight and a few extra ponies going to their exhaust for 1k bucks!!! I also belive that some of the mercs had cast risers and some stainless.... correct me if I'm wrong, either way, just getting rid of the cast manifolds would be a great weight savings....
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