Stebro exhausts?

[Spencer Cline]

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I saw in the latest Quattro Quarterly an ad for Stebro performance exhausts=
.  I checked out the site and found this, http://www.stebro.net/aq90s.htm. =
 Anybody know anything about Stebro, perhaps purchased from them.  I would =
appreciate any input you guys have.  Horsepower/Torque increase, sound qual=
ity, etc.

Thanks
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