Changing Mufflers on a cat c7
I have learned from experience with my Dodge truck (1998 cummins 5.9 isb) that when I added a 4 inch exhaust and a low restriction muffler that my exhaust temperature dropped some. I have a 2004 cat c...
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I have a 2002 CAT 3126... and it had a HUGE stock muffler that probably had a catalytic converter or something in it. I have no idea for sure though.
I put on the famed Aero 5050XL and it was "cool" for a while as I'm also a car guy and my car crowd loved the noise, it really bugged me the drone. At 70-75 the drone was gone so I spent a lot of time at higher speeds, but at the expense of MPG.
So I went on a quest to find the ideal muffler. low backpressure and low noise. I ended up getting a stock style muffler for a semi truck from the local truck repair shop. Donaldson is the brand, and it's a 5" straight thru muffler that is about 5' long. it's very low backpressure, but a LOT quieter.
Lesson learned. If you are hard of hearing and your wife is too, then who cares, but the drone of the Aero muffler drove me nuts, and I'm only 38 years old.
I put on the famed Aero 5050XL and it was "cool" for a while as I'm also a car guy and my car crowd loved the noise, it really bugged me the drone. At 70-75 the drone was gone so I spent a lot of time at higher speeds, but at the expense of MPG.
So I went on a quest to find the ideal muffler. low backpressure and low noise. I ended up getting a stock style muffler for a semi truck from the local truck repair shop. Donaldson is the brand, and it's a 5" straight thru muffler that is about 5' long. it's very low backpressure, but a LOT quieter.
Lesson learned. If you are hard of hearing and your wife is too, then who cares, but the drone of the Aero muffler drove me nuts, and I'm only 38 years old.
