Honestly in the cabin, I don't think there's much difference between the Akra and BMW performance.
BMW more raspy, Akra more bassy, but both subdued in the cabin. Although, both sound great outside the car.
In terms of resale, I think Akra is going to hold it's value better.
For emissions, you should pass with a tune. The Cat monitor will not show ready, but you'll still pass with only one monitor not showing ready.
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