K&N 57i Cold Air Intake - Fiesta Zetec S - Before and After - Sound Comparison - 4K

A comparison of the K&N 57i intake vs the stock filter. This comparison was done up to around 4-5000RPM. Yes, I know that this placement is a bit silly for a "cold" air intake because it is probably pretty hot where it is but that is how the kit was designed! Planning on moving it upfront.
The K&N has a much more aggressive sound, not so noticeable while stationary, but under load it is significantly better sounding and louder than stock.
As for performance, the throttle response and power seem to be slightly better at the higher revs.

Видео K&N 57i Cold Air Intake - Fiesta Zetec S - Before and After - Sound Comparison - 4K канала Scott van Breda