NNBS mufflers
08-22-2011, 05:56 PM
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NNBS mufflers
With my upcoming long tubes, and cam, I will have to get rid of my restrictive flowmaster 50 series. Wanted to see what you guys were running on the NNBS trucks, its a 4.8 CCSB mods in signature. I'm hearing borla xr1's, but i dont want it to be obnoxiously loud. Thanks.
08-22-2011, 10:43 PM
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looks like the spintech it is. with the 900series is it loud in cab at around 70-75MPH? or is the 6000 louder? that video they have on there with that silverado is awesome, thats the sound i would like to achieve. throating and loud at WOT yet quiet when cruising. as far as headers im going with the LPP long tubes with ORY and deleteing my cats
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08-22-2011, 11:41 PM
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How bad are cops in SD?? I had to put a stock muffler back in because I got a ticket for it being too loud with a flowmaster 3 chamber. I also added an electric cutout ,now I can cruise like stock and open up the cutout whenever I need it.
