I’d start off with getting under the car and making sure all exhaust bolts are torqued properly.
A decent way to check for exhaust leaks is to blow air into the exhaust and then spray soapy water on the flanges to spot for leaks (they’ll show as bubbles)
I’d also check the exhaust isn’t hitting the cross member. It could be tapping it under certain loads
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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes
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