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Anyone running catless headers w/ NPP

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Old Apr 24, 2012 | 12:13 PM
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Default Anyone running catless headers w/ NPP

Just curious how it sounds in the mild mode?? Still pretty quiet? I'm thinking about installing so AR longtubes cat delete.. I have Eforce.

Last edited by captainbob; Apr 24, 2012 at 12:45 PM.
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Old Apr 24, 2012 | 12:20 PM
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I do, it shuts it right down. little more rumble than stock. open it is loud! im trying to figure out how to keep them on or off. I have a switch but they still open approx. 3500 rpm. only time i smell it is if i get on it then stop. normal around town or freeway driving i never smell it.
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Old Apr 24, 2012 | 12:47 PM
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Originally Posted by madmax4499
I do, it shuts it right down. little more rumble than stock. open it is loud! im trying to figure out how to keep them on or off. I have a switch but they still open approx. 3500 rpm. only time i smell it is if i get on it then stop. normal around town or freeway driving i never smell it.
Good info.. I was hoping the mild mode will keep it quiet.. Thanks for the info!!
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Old Apr 24, 2012 | 03:19 PM
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Been thinking about the same thing. LG long tubes no cats and the NPP.
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