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Old 07-14-2011, 10:05 AM   #6021 (permalink)
birdmanx1
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I don't have such issue; I have the cats as well. You may want to check that nothing is loose with the exhaust itself. If not, it is highly likely that the exhaust causes rattle in your trunk. I have dynamat in my trunk so that may be why I don't have the type of noise you are referring.
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