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.

 

I'm running corsa!!! I have dynotechs, w/cats, and a bullet in front of the corsa muffler...it's quiet at idle and under normal driving...but wide open its LOUD!!!!

 

Spintech...6000 series looks like what you would want. i ordered the 9000 series for mine.

 

Id try an areo turbine

 

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

 

this will also be dumped, truck looks cleaner without exhaust coming out rear end

 

I liked stock denali exhaust on my rcsb when I had longtubes.

 

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.

 

Just installed my pacesetter long tubes with ory.. 3 inch exhaust magnaflow Dumped... Sounds good still kind of loud but cops should be tripping

 

Time to update your Sig.