Had exhaust rattle in my Miltek system which i thought was heat shield. Finally got car on lift and discoverd it was resonator (something loose inside as you tap it).

Emailed & talked to Stratosphere who could not have been better or easier to work with. They are shipping another resonator tomororw and will handle shipping including sending my unit back to them. Will credit my card when they get mine back.
They were very quick and great customer service on my 9 month old system.

 

good to know. thanks for the info