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Chevrolet Express
Platform: GMT Van

2007 2500 Express

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Old January 27th, 2015, 7:18 PM
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Default 2007 2500 Express

I'm considering installing a more mellow sounding muffler. A Thrush maybe, but open to other options. Nothing loud or coarse sounding, just a mellow sound. Suggestions anyone.
Old January 27th, 2015, 10:03 PM
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I changed my muffler to a magnaflow, and it created this unbearable drone throughout the van just after takeoff. I had to go back and have a resonator put on.
Make sure you don't impede flow, and have the same harmonic issue I had.....
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