04-09-2014, 08:16 AM
I HAVE USED K&N filters in the past. By them selves in an otherwise stock engine I don't think there is any gain except perceived seat of the pants due to increased noise. On my FORMER 1250 Bandit along with , a new can and TFI module, there was a significant gain. BUT NEVER tried the K&N filter only.(Holeshot.COM) Coupled with other mods at Higher RPM's and flows,I think there would be a small but measurable advantage. One of my vehicles( FORD RANGER ? ) specifically stated not to use K&N TYPE, my words, forgot exact verbiage, Filters.
