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Magnaflow, cat back problems
Hey everyone I have a 2010 6.2L with a 6 speed auto tranny. I installed the muffler delete Magnaflow cat back kit and am having a problem. At low RPMs the exhaust tone is changing and it sounds bad when it does it. It acts like it is missing and I am aware of the fuel management system where it shuts down cylinders but this change in tone is sporadic and I would think the fuel management would only be in the upper gears and at highway speeds. My local dealership is pathetic and they said there is nothing wrong and I need some opinions...
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