Have a 2004 2500HD w/400 and shield on muffler vibrating..
August 24th, 2011, 12:12 AM
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Have a 2004 2500HD w/400 and shield on muffler vibrating..
I'm believing the muffler has something internal or there's some resonance going on. It just starts to hum and yech...
What do you guys recommend in the way of an aftermarket exhaust system. Will I pick up some gas mileage with any certain exhaust systems? (Thrustmaster, Gibson, etc.) I have a 2004 w/ Crew cab, 6 Litre in it with a 410 rear end. I'm not wanting any extra noise on the highway.
Thanks...
Gary
What do you guys recommend in the way of an aftermarket exhaust system. Will I pick up some gas mileage with any certain exhaust systems? (Thrustmaster, Gibson, etc.) I have a 2004 w/ Crew cab, 6 Litre in it with a 410 rear end. I'm not wanting any extra noise on the highway.
Thanks...
Gary
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