A truck with a SuperCab (Extended Cab) and a 6.5ft bed will have a145" wheelbase. The issue with the Corsa Delete Kits for the 2.7L EcoBoosts is that they delete your stock resonator, but also include a Corsa resonator, while the delete kits for the 5.0L V8 and 3.5L EcoBoosts totally delete any resonators from the truck. That being said, you can technically use the kits "meant" for the 5.0L and 3.5L EcoBoosts on your 2.7L F150 if you do want to completely delete your resonator or save a little cash.