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Old 01-16-2012, 11:05 PM
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nosiey stack.

I have a 4 inch to 5 inch tip single stack and its ridiculous loud. I love it. But I need somethin quieter in the cab. Would duals be quieter? and would size such as 7 inch tips on duals make a difference?
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Old 01-16-2012, 11:09 PM
Can you hear the derail??

 

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duals may quiet it down, but being as its a stack(s) and literally rite next to the windows, it wont solve your noise problem, the larger the diameter of pipe the deeper the sound till you hit rediculous diameter (trash can circumfrence) but if you want the exhaust sound away from your ears then only bet would be to get full length set up and run just before or behind rear tire or out the back
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Old 01-17-2012, 03:47 AM
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I don't mind it. But sometimes its annoying. Anyone ever look at a way to leave a full rear exhaust on and stacks? With a way to pick and choose witch one. Idk if slp makes a 4 inch butterfly valve tho. Mmmm Ima be broke. Lol.
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Old 01-17-2012, 06:19 AM
Can you hear the derail??

 

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they do have a butterfly vlave out there, like 3 months ago in diesel power a guy ran one so he has dual stacks and dual exhaust, kind of a waiste imho, but if you want to pick and choose as to which you wanna run at a time but thats just some extra stuff not really needed
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Old 01-17-2012, 06:28 AM
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Quote:
Originally Posted by Underdogpsd View Post
I don't mind it. But sometimes its annoying. Anyone ever look at a way to leave a full rear exhaust on and stacks? With a way to pick and choose witch one. Idk if slp makes a 4 inch butterfly valve tho. Mmmm Ima be broke. Lol.
Why?



freaking 10 letter minimum
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Old 01-17-2012, 06:49 AM
Can you hear the derail??

 

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i could have sworn it was a 12 letter
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Old 01-17-2012, 07:13 AM
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Lol just getting a phone call and trying to yell over the truck gets old. Or a drive trough window they can hear you. That's really the only reason I'd like it.
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Old 01-17-2012, 07:43 AM
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Install a stack muffler (slides down inside your stack) or put on a resonator. I personally LOVED my dual 5" stacks I had on my 6.0

I had a 5.9 cummins with a single 6' and it was pretty rough until I put an underside exhaust back on and turned it out in front of the rear tire, THAT was unbearable...
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Old 01-17-2012, 07:51 AM
Can you hear the derail??

 

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hell my 5 inch stacks was nice and mellow at idle, got lots of compliments,

funny story one time i had a suspended license and stopped by the police just to be complimented lol, i have since fixxed the issue but wow i was nervous
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Old 01-17-2012, 08:42 AM
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i've ran a miter and a cat stack. the cat stack was a lil bit quieter but not much. another option is to raise the stack higher. then you would be putting the sound above the cab and not rite next to it
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