New update: it is definitely not an exhaust leak. After driving the car the past couple days it seems the noise is only coming from inside the car. If i rev the engine with the hood open and standing outside everything sounds normal. If i sit in the car with the doors closed it is loud, something involving the new clutch. The weird part is after driving for 10 min or so and the car warming up it sounds ok.

More like a loud whirring noise (hard to describe). Hoping its just a break in period, but i am taking it to another shop this weekend for a second opinion.