If you were to make and sell these, about how much $?
To be honest, I don't think I have the time to do it, nor the patience to interact with customers. From a price breakdown, the parts aren't that expensive - but the "labor rate" I would have to charge to do them would be $$$.
Priced from Jeg's:
3" 30/180 mandrel bent SS pipe - $75
3" x 10" SS Flex joint (could probably get away with a shorter one) - $78
SS Flanges - $20
SS O2 bungs - $30
So roughly $200 in parts alone, not including the time to build a new jig/fixture, source pre-bent pipe, find reliable sources and the time to hand-build each one.
ZZP sells this similar setup for the Cruze in 2.5" for $499; while this looks like a potential profit of $300/ea if I were to build them, It would probably average out to about $75 / hour of my time. That sounds like a lot - if I were making enough systems to work full time - but I get so busy at my regular job that I would rather have the time off than the extra money.
This is not to say that I wouldn't be happy to help a local person build one for their own car, but I would do that for free.
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