I am trying to take my single exhaust and upgrade to a flow master super 44 duel exhaust. I was wondering if yall could give me some advice on this and the best way to do this...I can't straight pipe/ free flow it because it will void my warranty...any advice/help would be very appreciated.

Thank you,
Dave

 

If flowmaster is what you want, then buy the muffler (single in/dual out, 3" in/out) and have an exhaust shop run it out back to the tips of your choice.

 

I have Flowmaster "50 Series" mufflers on my 2004 Silverado LS (5.5L V8). They sound great. The "70 Series" seemed to be too quiet and the "40 Series" can wake the dead.