Stay away from MAC! That said, I've run MAC long tubes for about a year, and they've never sealed at the collector and began to rust badly just at the end of the summer. They fit alright, but the individual flange isn't something I'm fond of. I've heard great things about BBK's long tubes, I don't think they're too expensive.
As for daily driving, never had a problem there, they make great low end torque vs. shorties (equal and unequal). Just as long as you get the right headers and Hpipe (for manual or auto) and then you'll be alright.
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