Join Date: Mar 2011
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On my 2011 392, I took off the "mufflers" by the rear bumper and installed straight pipes in their place. I left the "resonators" in place that are located just before the rear axle. My dealer told me any alternations from in front of the rear axle forward will result in a voiding of the emissions portion of the vehicle warranty.
I think my car sounds great! It cost me $100 to have this done at the local muffler shop.
2011 Challenger SRT-8 Black
2007 Dodge Ram 2500 6.7 Cummins Lifted
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