I'm going to be driving a 2010 Altima Coupe 3.5 SR. I'm looking to replace the exhaust system it has for something that sounds better! ALTHOUGH every YouTube video I watch, and every link I click, all I hear is crackling. To be honest, some of these AC owners are making their cars sound like rice burners

What's an exhaust I can get that will make my car have a deeper throaty sound like a v6 should have..rather than a 4 cylinder honda civic with a coffee-can exhaust tip?