Thanks for the input...
The privious owner did have an issue with AWE which resulted in a replacement. It had several leaks in the welds. This sound is more of a design issue I think.. I will contact AWE to see what can be done..
Thx

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2006CS Nav-Sports-AWE Exhaust-EVO Intake-Short Shifter-19" Cararra's-De Snorked..and of course Black on Black!