Megan Racing Drift Spec Axleback: Install Lexus 2IS350 

This was the best axle back I found. It sounded the best to me, but if you want the best exhaust you need headers and full exhaust

Realistically you can't increase outflow like this, you'd need to eliminate the cats for more power. The only performance gain would be the weight reduction of probably like 15-20lbs from the stock muffler to the upgrade. This is mainly a cosmetic and aesthetic mod

@@Alexusmate Thanks for the information 🙏🏽