Anyone regret adding or removing muffler after a turbo?

US6x4

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For those that have added a turbo and left it straight piped do you have any regrets about the noise level or is it not too bad?

For those that have added a turbo and left a muffler on it do you think it's too quiet?

I'm mainly concerned about 809 trucks with the stack beside the windshield but I'd like to hear all opinions 🙂
 

charlesmann

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I just replaced my muffler with a straight pipe on my 936A2 and only at idle, can i tell a difference. When throttled, i only hear the engine, even when im operating the crane, which is closer to the stack than on the 809 series.
 

Russ Knight

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I just replaced my muffler with a straight pipe on my 936A2 and only at idle, can i tell a difference. When throttled, i only hear the engine, even when im operating the crane, which is closer to the stack than on the 809 series.
Where did you get a straight pipe? Thanks!
 

US6x4

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Here in Washington state unmuffled jake brakes are no bueno but the big rigs don't pay much attention to those kinda rules so that wouldn't be a deal breaker on going straight pipe for me either.
 

Crf450x

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I put a turbo on my m923 with 5” exhaust and 6” stack. If I was driving it to work every day I’d put a muffler on it. But for the way I use it, it’s perfect and sounds great.

I pulled the muffler off before I had a turbo and put it back on after one drive. That was absolutely obnoxious.
 

US6x4

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For now I only drive my truck for fun and maybe put on 200 miles in a year. I wear H-161 headsets while I'm driving so that would seal out a lot of noise.
 

dougnash

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I put a turbo on my m923 with 5” exhaust and 6” stack. If I was driving it to work every day I’d put a muffler on it. But for the way I use it, it’s perfect and sounds great.

I pulled the muffler off before I had a turbo and put it back on after one drive. That was absolutely obnoxious.
any pictures of your exhaust from manifold to stack?
 
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