4" Diamond Eye Turbo Back DPF delete exhaust with muffler, want it to be quieter - Ford Powerstroke Diesel Forum
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post #1 of 27 Old 08-24-2012, 09:26 PM Thread Starter
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4" Diamond Eye Turbo Back DPF delete exhaust with muffler, want it to be quieter

Just had a 4" Diamond Eye Turbo Back DPF delete exhaust with muffler installed, would like it to be quieter. Still to loud with the muffler, any ideas on what I can do to quiet it down? I like the turbo whistle but would like it to sound like stock. I've heard of adding another muffler. Please help, thanks!
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post #2 of 27 Old 08-24-2012, 09:28 PM
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Put the cats back on it



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post #3 of 27 Old 08-24-2012, 09:32 PM Thread Starter
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I want to leave the cat out.
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post #4 of 27 Old 08-24-2012, 09:34 PM
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Why doyou not like how loud it is?



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post #5 of 27 Old 08-24-2012, 09:40 PM Thread Starter
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Yeah don't like how loud it is.
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post #6 of 27 Old 08-24-2012, 09:57 PM
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Dang man. You'd die in a 6.0L. My straight pipe 6.4L is hardy audible in the cab. But I plan on eventually muffling it.

I would check to make sure you installed the muffler the correct direction. Most modern bolt on kits have two different ways to install the muffler, one is louder and one is quieter.

Other than thatc you have two options: throw on another free flowing 4" muffler, or add a 30" resonator from FTE. The resonator will probably get rid of the hair dryer noise, and allow the turbo to still sing a little bit. A second muffler would probably get it back to stock sound level, but just sound a little better.

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post #7 of 27 Old 08-24-2012, 10:44 PM
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I have the Aero turbin muffler and it softens up the sound nicely.

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post #8 of 27 Old 08-25-2012, 03:46 AM
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Go back to stock if you want a stock sound. It's an aftermarket exhaust. No one buys an exhaust to sound like the stock exhaust, that would just be a waste of money.

Sounds like the OP jumped on the tune bandwagon without doing any homework... Sorry.

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post #9 of 27 Old 08-25-2012, 04:00 AM
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Quote:
Originally Posted by RUFFSTUFF View Post
Go back to stock if you want a stock sound. It's an aftermarket exhaust. No one buys an exhaust to sound like the stock exhaust, that would just be a waste of money.

Sounds like the OP jumped on the tune bandwagon without doing any homework... Sorry.
such a silly statement... plenty of people buy an exhaust to sound like stock! They just want it to flow correctly.

you can tune a truck without making noise. sounds like you're the one on the bandwagon

to the OP: get you a 51" Donaldson PN M090544

you can get it here:

RYDER FLEET

You can also incorporate a 4" glasspack up towards the front of the truck. That will eat up some turbo noise and further reduce resonance

something like: THIS

HTH
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post #10 of 27 Old 08-25-2012, 06:06 AM
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for stock sound levels and better flow, a DPF/Cat delete on a stock exhaust would have been the best choice.

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