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6.0 cat delete questions

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Old Jun 29, 2011 | 09:03 PM
  #1  
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6.0 cat delete questions

I've recently did the cat delete on my 4" mbpr exhaust, to lower my egt"s. Now i have have a 40 & 60 mph low frequency rumble, that's sounds sweet. The problem is my wifie dosn't like it (imagine that)! Can i wrap the exhaust with a
high temp fiber tape, but not the muffler. Would their be any consequences for
doing this? Higher exhaust temp in the muffler or turbo? Thanks, in advance
 
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Old Jun 30, 2011 | 07:59 PM
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bump, no comments about breaking the emissions laws? I did use a radio shack decibel meter to monitor the A weighed difference between 4" mbpr cat back &
after the delete.
 
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Old Jun 30, 2011 | 10:54 PM
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I have the same system and have not noticed the rumble increasing at those speeds. I have not yet heard a complaint from the wife or kids. I just notice it is getting a bit loud when towing the passes with a 10000lb trailer. I did install dynamat when I installed the entertainment system and maybe that is the difference. My wife does have a aftermarket performance exhaust on her superchargered hummer though which is just as loud.
 
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Old Jul 5, 2011 | 10:23 AM
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Dynamat is a sound suppressing mat? Must have worked good, where did you install it? thanks, curt
 
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