K&N 57I Cone Filter Ford Fiesta ST150
Noticable difference past 3000RPM. Plus the sound is epic. Waiting on the flexi pipe next to see if that gives it yet another boost :)
Sounds very nice and very good fit, easy to install K & N is a good filter, Christian Sweden
sounds awesome love it if your gonna do one thing do this you will not be disaponted!!!
sounds and performs great especially with a miltek exhaust.