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exhaust
alright so i got a 2010 silverado ext cab. it got the 5.3 6 speed. well i would like to install an aftermarket exhaust on it but it has the fuel mangment on it and ive been told the when it goes in to 4 cylinder mode that you hear a major differnce. does any one know what kind of muffler that is some what louder than stock and still sound good when it goes to 4 cylinder mode. i really dont want a magnaflow cause i think there to quite. any help or info would be nice to know. thanks will.
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