I have a K&N Intake and I feel loss in power because of heat soak especially when its over 100 degrees and mine is shielded. My dyno sheet is proof of the heat soak. A few times its been in the mid 70's outside (it was 3am) and I felt a significant difference in power.
There are no tunes available for our Foci just yet.
2012 Ford Focus SE Hatchback Race Red. 203A Spec. Window Tint. K&N Typhoon CAI. FSWerks Race Exhaust. Weathertech Digital Fit Floormats. HIDs with Projectors. Build Date: 2/14/2012
Active Duty US Army. MOS 91E (Machinist). OEF Vet.