Does anyone make a cheap lightweight muffler for the 986?

[j.fro]

I've been thinking for a while about building some cheap, lightweight mufflers...so here goes:
Would you pay $300 for a straight-through design muffler that's half the weight of the stock muffler? The catch is that it wouldn't be stainless steel, but rather mild steel with high temp flat black paint .

By the way, I priced out building cat bypass pipes from stainless, and the cost for the materials plus the labor to build was over $350...At $495 the Fabspeed pipes really don't have such an obscene mark-up after all.