Exhaust question

[Nazbill]

I’m thinking about putting aftermarket exhaust just wanting muffler replacement but with little to no drone suggestions!!???!!!


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[Firebird]

I have 18” Magnaflow, no drone at all

 

[Damion]

Flowmaster FlowFX here. zero drone

 

[James1414d]

I also have the FlowFX. It sounds a little goofy in eco mode, but no drone.

 

[Derek_Rebel]

I have the carven and love it

 

[Dire Wolf]

B2 Fab with Magnaflow---Perfect! Nice growl and no drone.

 

[Hockeydad]

For those of you that installed the aftermarket muffler did you happen to notice any loss of low end torque?

 

[Firebird]

For those of you that installed the aftermarket muffler did you happen to notice any loss of low end torque?

None that I can tell

 

[TWRam]

Another vote for the Flowmaster FlowFX. No drone when cruising, can hear it when you want to. Nice, clean, tuned sound outside. No rasp. Doesn't sound cheap. I am very happy with mine, and I am very picky with any mods.

 

[Raydar]

I just got my FlowFX installed, yesterday. Instead of going with the direct fit for $310, I opted for the basic muffler, and had my local shop install it. Cost me $175 installed, and took about 20 minutes, in and out.
Retained the stock muffler in case I hated the FX. (I know why it's described as a "5 gallon bucket", now. Damned thing is "hyuge"!)

With that said... I like it.
It sounds very much like the stock muffler, only more-so. Has a nice rumble, but is not obnoxious, and not likely to pizz off my neighbors when I leave for work at 6 AM.
Some observations... The louder exhaust really illustrates how "busy" the PCM is, doing "engine stuff". Not only can you hear it shifting in and out of MDS/ECO mode (it really just sounds like a shift to another gear) you can hear the PCM pull the spark advance, just before it shifts, if you're at full throttle - probably to make the shift smoother, and to be easier on the mechanicals. (I'm assuming that's what it's doing. I know that's how GM does it. I've seen it in the programming.)
The low frequency rumble is a bit louder, at speed, but I wouldn't even call it a drone. Whatever it is, it's not obtrusive.
My wife had a hard time telling the difference from stock.

 

[shrubs2000]

It was a toss up between Flowmaster FX and Magan Flow. The only reason I chose Flowmaster was I've never run one before. I like the sound and the non-raspy rumble at WOT