Muffler removal

[arizhntr]

I removed the Bank's muffler on mine and actually cooled the egt's down by doing it. Straight piped isn't that loud unless I wrap it up to swap gears. The guys at emissons spend an extra minuted looking at my exhaust every year, but don't ever say anything. I have to be carefull on the dyno - inside the station. I wrapped it up a little too much one year and got some dirty looks.

 

[79jasper]

I removed the Bank's muffler on mine and actually cooled the egt's down by doing it. Straight piped isn't that loud unless I wrap it up to swap gears. The guys at emissons spend an extra minuted looking at my exhaust every year, but don't ever say anything. I have to be carefull on the dyno - inside the station. I wrapped it up a little too much one year and got some dirty looks.

You must have done something else at the same time. Banks is a straight through. Basically a glass pack.

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[chillman88]

You must have done something else at the same time. Banks is a straight through. Basically a glass pack.

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Could have just been full of soot too.

 

[Dane Rickford]

When the muffler rotted out on my 6.9 I decided to straight pipe it. Really wasn't much louder than the thrush welded muffler I had on there except when you had it floored. Mind you this is with all 3 inch pipe from the y back.

Buddy of mine did the same thing with his truck. Only his was 2.5 inch pipe and it was almost obnoxious loud.

I have to agree with this. I’m running 3inch from the turbo back, and it’s actually pretty quiet. I’m about to got to a full 5 inch straight pipe after the downpipe. This should make the sound in the cab quieter, and it will make the exhaust throatier and have a lower note