Ok so I put in an X pipe, two Dynomax race bullet mufflers and deleted the resonator. The truck sounds awesome, but I want it louder. Since I live in CA and need to get my truck smogged I was thinking of having a custom 3 inch straight pipe cat back exhaust with no mufflers. Do I really need the X pipe? What does it actually do? I know it equalizes the pressure but does it affect the sound? I WANT IT LOUD!!!!