New Exhaust?

[u n v me23]

Whats a really good catback system? I was told I should upgrade my exhaust system from the Greddy evo2. Something about getting a more free flow exhaust to go my set up. My set consist of...

Skunk2 intake manifold
hondata gasket
skunk2 throttle body
DC Sports 4-1 header
Greddy Evo exhaust
AEM Cold Air Intake
AEM Fuel Rail
AEM Fuel Reg.
skunk2 camshafts pro series stage 2
skunk2 cam gears
Skunk2 pro series valve springs and retainers
AEM EMS
ACT Streetlite Flywheel
ACT Heavy duty pressure plate
ACT 6 puck solid race disc

 

[95eg6]

i like my apexi n1 its got a pretty good tone to it, deeper not as ricy, and very few bends