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Re: My New 03 1500HD
Just replaced my muffler with little guy.
I have always wanted a Magnaflows kit and for the 6.0L there cat back kits are a dual 3 into a single 4". It seems ridiculous, I know, but they can back there numbers up with dyno stats and I dont have a dyno to disprove them so I will trust them. They want an arm and a leg for the kit ($650), so I Just bought the muffler for $160 and had a local shop order in a 4" pipe for about $100 and had them install it. The total bill came in right at $425 so piecing it together was way cheaper.
It sounds awesome, throttle response is quicker and you can feel a little more in the seat of the pants through the entire rpm range, especially mid range. The only issue I have with it is there is a light drone in the cab from 1300-1800 rpm, so putting around town can be annoying for passengers. I am gong to do some research and try and get rid of the drone, maybe neck it down to a 3.5" and see what happens. I will post any changes I make and any results I achieve.
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