Word of caution when using the UniFilter.
When starting our bikes up especially after making carb or exhaust modification, adding any throttle while starting the engine makes it prone to backfiring.
I have recently found out the UnifFilter foam component will melt when exposed to the backfire. Not all at once but over time slowly causing it to loose it's filtering characteristics.
Frequent inspection of the filter is a good practice and necessary to insure proper oil application and cleaning for optimal performance.
Just Nice to Know Information.
