I found these part numbers from Magnaflow for our trucks here in the forum. Is one better than the other?
Magnaflow part # 16888

MagnaFlow 5 X 11in. Oval Straight-Through Performance Exhaust Muffler 12568 is now back in stock.

 

the 12568 is dual in and dual out, won’t fit. 16888 is a $800 cat back system.

I have a Magnaflow 12256. Welds right in, no drone and just enough rumble when on the gas.

 

Just ordered it for $130...

 

I’ve been pleased with it all around. Update this thread after install. Like you hear your take.

 

I too have the Magnaflow 12256 and it does sound good but I also removed my rear resonator (one less thing to get hung up) and I do get some annoying drone at ~50mph.

 

forgot to mention that I removed the rear resonator as well. Sounds great.

 

My centre muffler is rattling again... the tek screw "fix" has failed

I just ordered the Magnaflow too... but the shipping to NZ adds up... but still cheaper than buying it locally. Hopefully sounds nice, but I'll still have the rear resonator anyway.