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Nnbs cat removal

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Old 12-05-2010, 05:30 PM
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Default Nnbs cat removal

Would I get anything from pulling the cats off and having them tuned out.
Old 12-05-2010, 05:35 PM
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I would say definitely as they are restricting your exhaust flow, my truck had 3 cats on it.
Old 12-05-2010, 06:07 PM
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Make it louder.
Old 12-05-2010, 08:00 PM
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Not to worried about sound. Chad good to see the silvys back on there.
Old 12-05-2010, 08:00 PM
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Originally Posted by double047
I would say definitely as they are restricting your exhaust flow, my truck had 3 cats on it.

how is that thing with 4.10s and six speed??? i want to go with a better gear but i dont know if ill like it with the 6spd
Old 12-05-2010, 09:31 PM
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I have a 4.8 it got louder plus I notice a little bit more pull ... Then I tuned and fell in love lol
Old 12-06-2010, 05:56 AM
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Are you guys all living in areas where they don't require visual inspection for emissions?
Old 12-06-2010, 07:58 AM
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Originally Posted by ssierra08
Not to worried about sound. Chad good to see the silvys back on there.
You would have seen them at the meet if you showed up lol
Old 12-06-2010, 08:10 AM
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Originally Posted by 08Chevy
Make it louder.
x2, factorys are restrictive but i dont see much coming out of just removing cats other than you can smell exhaust fumes whenever you like.. lol
Old 12-06-2010, 09:30 AM
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I'm getting the low efficiency on bank 2, not sure if its an o2 or a cat going out. I am getting a rattle so I think the cats are headin south. Read something about some bolt in cat delete y pipe. Can't seem to find it on here, but besides dealing with the rear o2 delete, anything else to know about ? What have some of you done to **** can your cats?


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