I have had my TB for one year and am on my 3rd muffler.
When I bought it, the previous owner had installed a Magnaflow and cut off the resonator. It was so loud, I couldn't stand the sound, so I had it changed to a different muffler. I don't recall the brand of the next muffler, but the muffler shop told me that it would be quieter with the same amount of flow. I still couldn't stand the sound of that one either
I finally changed that one out for a GM OEM muffler
. I like the sound now; it sounds normal to me. But, the mpgs definitely suffered throughout the downgrade
. I have not noticed any decrease in power though.
I am about to change it out one more time. Next payday, I am going to order a Walker Quiet-flow muffler
and their resonator
as well. I'm banking on the possibility that I might improve my mpgs again, and get my truck even quieter. I am all about having a stealth truck, not a loud one. My research and question-asking has informed me that a resonator is an integral part of keeping cars even quieter
, and removing it can add as much as 25% more sound.