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Old 11-20-2013, 06:12 PM   #15

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Drives: 2013 Camaro ZL1
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Originally Posted by kaamacat View Post
Depending on what he (dealer) is referring to, some autos have a primary and secondary routing for the exhaust where at lower rpms the exhaust is in a closed, but also the ECU is tuned... ultimately (in theory) if you keep it active at all times you loose the small backpressure at low rpms and hp/tq. (That does make sense, but, I'd want to see a dyno on it). These cars or exhaust systems really are not all that robust/complex to do that.

The main reason typically is for low speeds/rpms = in town areas and such for noise restrictions. BUT that mostly is in Europe. (And we not be Europe)

But that doesn't apply to the ZL1 correct? The dealer is talking out of his or her ass period!
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Old 11-20-2013, 06:31 PM   #16

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Originally Posted by bowtiefamily View Post
Which one does Shoeless Joe Jackson like best ?
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exhaust, f8., fuse, zl1

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