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2001 2500HD. About 15 years ago I installed a Meineke 4" exhaust system ont the promise of added performance and mileage. Went from 20MPG to 19MPG and I've hated the sound ever since. Even added a small racing muffler between the engine and the primary muffler. Just replaced the main muffler this year as the old one's packing had finally gone away.
What can I do to make it tolerable to ride in this thing on family trips pulling the trailer?
 

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When I purchased my current truck the previous owner had deleted the factory exhaust and installed a downpipe back 4" MBRP exhaust, This means he deleted both the CAT and DPF. The MBRP exhaust had a muffler.

The drone in the truck was so loud my wife and I had to shout to have a conversation. I HATED it.

I installed a 30" resonator as close to the front as possible, where the CAT used to be. It solved the problem. I don't work for them I just like this product

FTE Resonator / Muffler 4" x 30" Aluminized

You will need the resonator and 2 band clamps (Call FTE to order and insure you get the correct clamps).
 
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Has anyone put the Diamond Eye 4" system, with the quiet resonator, on their truck? I have a 2003, 3500 dually. I pull a 13,000 fifth wheel and would like cool as possible EGTs. I have a Diamond Eye system on my 1997, 3500 with the 6.5td, it doesn't have the resonators on it. I like the tone, but it has a little drone in the cab, it's fine with me but my wife will be in the 2003 with me and she doesn't like the drone. Trying to keep Momma happy!!!
 
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