help with muffler

[d2bnorman]

Hi, I put a Magnaflow muffler on my HD about 2 months ago, (part # 14590, SS, dual 3" in one 3" out). I wanted a little throatier sound and a little better breathing. Things are fine except when I'm below 2000 rpm, then I have a constant incab droning which is really starting to get to me. Right now I'm seriously considering going back to the stock muffler, anyone have any suggestions as to a better setup that won't resonate below 2000 rpm? Thanks for any feedback.

[HDROCK]

do you have a 6.0 or 8.1?

[HendyPhoto]

My magnaflow made alot of vibration and resonance in the cab. I switched to flowmaster out the back instead of out of the side, and now there is no in cab vibration/resonance. But outside of the vehicle it is louder!!!! I think having the pipe out the back instead the side made the biggest difference. I also noticed it being quieter after I had the truck undercoated and the bed spray-lined. Maybe I am nuts, but I am sure it is better!! (it's okay as long as I think I am right)

[d2bnorman]

HDROCK, I have the 6.0 in my truck.

[Black02Silverado]

I think you would like the Flowmaster Bigblock 70 series. I have it on my 5.3 and it is quiet but still has the flowmaster rumble.

 

Hendyphoto, that is one tough looking truck.

[WEEKEND WARRIOR]

6.0L with Flowmaster 70 big block muffler, dual 3" in & dual 2.5" out with two 18"x3.5" tips. Sound is deep out side not to loud in side. Call Flowmaster teck (800-544-4761) some employees there have a little different set up with less in cab noise.