Those in the Starla bags don't seem to last very long or maybe I just don't like getting under the car to replace them and see how the pipes themselves are corroding. Sorry this isn't scientific and I can offer no comparison with other brands, and I still buy them anyway.
Last set used last week: 29 months/19K college student miles. Pipes still have a year or so left I think. Also, we really are never sure when the resonator hangers fail -- only find out when the rear muffler goes clunkety-clunk out of the driveway.
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Art Benstein near Baltimore
A successful diet is the triumph of mind over platter.
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