[v8Toilet]

Originally Posted by jimdejet

I tried the Gibson SS muffler that Ray and others have used for 5,000 miles. The muffler did add torque for towing along with the JBA headers. My wife and I missed the oem muffler quietness and had the original muffler reinstalled. We like the sound much better now. Now we have minimal 2,000 rpm dreaded drone.

Maybe we are more sound sensitive than others. Also the Tundra has a camper shell and now I wonder if that contributed to a heavier exhaust sound being heard in the cab? Also a Unichip is installed and could this also contribute to additional exhaust noise?

Has anyone put an extension on the end of the tail pipe for the exhaust to exit in cleaner air instead of the oem way of directly behind the rear tire? If so did the exhaust sound change from the oem sound?

If you are getting a drone with the stock muffler you might have an exhaust leak. The most likely place you'll get an exhaust leak is at the connection just after the resonator. If the installer didn't put a new gasket in the connection just after the resonator and just reused the old one than it will most likely leak.

Also if you so much as have a pin hole in your exhaust system due to shoddy welding you'll have a nosier exhaust system. Any hole in the exhaust system will also cause you to loose some lower end torque depending on the size of the leak.

Restrict the exhaust system at the tail pipe without completely blocking it off and feel around those connections. Chances are you'll hear it hissing if it leaks badly.