Just want some advice on how to make the 2zzge sound better at idle, and from the front of the car.

I have a custom exhaust that sounds great from the rear, but from the front and at idle, all i hear is my serpentine belt (which i need to change, so that should fix the slight squeak), but it just sounds plain.

But yeah, just curious if anyone has advice on how to make my 2zzge sound ”meatier” at idle and from the engine bay.