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post #1 of 6 Old 01-10-2012, 11:22 AM Thread Starter
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engine noise

Hey guys,I just put a Diamond Eye 4" exhaust on my OBS and when installing the Down pipe must have taken too much of the sound deadening material off to get the DP in,can anyone reccomend some type of mat I can put down under the carpet to quiet the cab a little,I hear too much motor now,tried to use undercoating but that didn't do much.

1997 F-350 CC Dually Power Hungry performance chip. DIY air intake ,4" Diamond Eye exhaust, Trans temp gauge,Pyrometer gauge 10,000 Lb. Warn Winch, 1 million candle power auxilary lights,black heavy diamond plate bumper/brushguard
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post #2 of 6 Old 01-10-2012, 11:37 AM
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Dynamat, or something similar may work.



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post #3 of 6 Old 01-10-2012, 11:42 AM Thread Starter
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I just did a search and found somthing that is half the cost of Dynamat,it's called Fatmat. I watched a few vids on it and may truy this stuff unless someone has better advice.

1997 F-350 CC Dually Power Hungry performance chip. DIY air intake ,4" Diamond Eye exhaust, Trans temp gauge,Pyrometer gauge 10,000 Lb. Warn Winch, 1 million candle power auxilary lights,black heavy diamond plate bumper/brushguard
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post #4 of 6 Old 01-10-2012, 11:43 AM
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if you really wanna get rid of it, dynamat the whole firewall and floor board, that should do the trick, there are other brands that are cheaper but the names escape me at the moment

-Kris-
2000 excursion V10 2wd 230k
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Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
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Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
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Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #5 of 6 Old 01-10-2012, 06:02 PM
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its not insulation you need, your new dp is making contact somewhere im sure of it.
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post #6 of 6 Old 01-10-2012, 08:21 PM
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x2 on what STR said. Make sure your DP isn't contacting the firewall.
Aside from that, I ran FatMat in my old truck after installing the stereo system. Worked like a charm
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