Looking for best overall straight pipe sound (4" vs 5") ? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 28 (permalink) Old 04-09-2009, 07:29 PM Thread Starter
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Looking for best overall straight pipe sound (4" vs 5") ?

I doubt this thing will ever sound like my old 6.0L straight pipe, but I take what I can get.

Anyone had the chance to compare a straight piped 4" next to a 5" straight pipe ?



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post #2 of 28 (permalink) Old 04-09-2009, 07:42 PM
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post #3 of 28 (permalink) Old 04-09-2009, 08:12 PM
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I can't compare to anything other than I have the 4" DP back with dual exit 4"....

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post #4 of 28 (permalink) Old 04-10-2009, 02:50 AM
 
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I install them all the time, the 5" has a deeper sound over the 4". I usually run with a straight thru muffler just to knock of any "edge" on the exhaust note. Let me know if you need any assistance or suggestions on brand/type.

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post #5 of 28 (permalink) Old 04-10-2009, 05:52 AM
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Have 5" Flo Pro straight. Sounds great

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post #6 of 28 (permalink) Old 04-10-2009, 06:57 AM
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Quote:
Originally Posted by 2005josh2006 View Post
Have 5" Flo Pro straight. Sounds great
does it whistle? and does it sound better and whistle more than the 4inch?
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post #7 of 28 (permalink) Old 04-10-2009, 05:17 PM
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It depends on what type of exhaust you put behind it all too. My truck has a 5" delete with 6" stacks and it's nice and low, and gets really loud on WOT. My buddy has a 4" delete with a single MBRP and his sounds much higher.

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post #8 of 28 (permalink) Old 04-10-2009, 05:21 PM
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I have stock exhaust and 4" DPF/DOC delete. Sounds good once you get past the hair dryer sound. Soon to be getting a 5" single or 4" dual exhaust.

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post #9 of 28 (permalink) Old 04-12-2009, 04:19 PM
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Quote:
Originally Posted by powerstroker67 View Post
I install them all the time, the 5" has a deeper sound over the 4". I usually run with a straight thru muffler just to knock of any "edge" on the exhaust note. Let me know if you need any assistance or suggestions on brand/type.
Sean,

What do you suggest to help knock down the hair dryer sound from the straight thru pipe? I like the rumble of the pipe you sent me but not the other sound.

Thanks,
Gerry
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post #10 of 28 (permalink) Old 04-12-2009, 05:42 PM
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