I know some may not like this, but do a spin off of the rear delete. Instead of the axle ove into a single tip, you can use a "Y" pipe and run two tips.
Dyno numbers: 177hp/163tq
Mods: Steeda Intake, STS Kit, Rear sway bar, Lowering springs, Steeda RMM, Magnaflow catback, SCT Tune
Moderator: Third Generation Ford Focus, DURATEC Ti-VCT GDI Performance Chat & Florida regional section