For dual tips you might be able to adapt a Mazda 3 set up, the 2.3's/2.5's came with dual tips!
2012 F-150 EcoBoost 4X4 (work truck)
Focus S #1, Sedan Revolution #192, Rally Revolution #8, March 2012 SOTM
Focal Distortion, a Ford licensed club and FSC member.
Sgt, USMC (1999-2003)