I have searched this site and others and can not find the point of a performance resonator such as magnaflow. I want to upgrade my catback system. According to many I need to get a performance resonator, mufflers and pipes. What will a performance resonator due that a stock will not?

 

If you do a catback it gets rid of your resonator. Many people prefer to add a resonator to the catbacks to quiet it down a bit.

 

2.5" aero res on stock exhaust will sound aggressive

 

I'm actually contemplating possibly adding a mid muffler to Mike's ATLP base if I get it. I heard the resonator doesn't quiet it down enough.