Install the Velocity Stack airbox funnel from KSPP for increased power and torque at mid to high RPM, as well as improved throttle response.For optimal results, run the Velocity Stack with an open aftermarket exhaust and tune your ECU specifically to take advantage of the enhanced airflow characteristics.Please note that if you run an open aftermarket exhaust in combination with the Velocity Stack airbox funnel, it may be necessary to tune for the significantly enhanced airflow, to ensure that your engine does not run lean.Installation notes: use sandpaper to smooth the air box opening where the funnel inserts, as the fit is tight.Compatible with all years of CRF300L and CRF300 Rally.
