Ok my setup is full 3" exhaust including a Brand New Warpspeed 3" y-pipe, Test pipe, resonator and a 3" in 3" out DynoMax Super Turbo Muffler.

The first couple hundred miles It was fine, now im getting a "Buzzzzing sound" out of the exhaust as I shift through the gears. At idle If I rev it, I dont hear the buzzing...it dissapears once I get into the higher RPM's but I definetly get a buzz around 2200 RPMs and 2500Rpms kinda....

Now Im assuming for $270 that Dallas at Warpspeed put a lining on the flex section but I can be wrong. Its definetly not "beez in a can" sound I used to have like 3 years ago with my original Y-pipe that forced me to buy a new one with a lined flex section...Its more of a "Buzzzz" from the rear of the car..

Any ideas guys ??

-matt

 

It might be the exhaust hanger in the rear. It happens to mine every once and a while.

 

Anyone other feedback..

-matt

 

heatsheilds...they can easyliy buzz even if there not touching. make sure there all fastend down firmly

Jeremy