OK HES GOING BAD MOUTH EVERY OTHER FILTER COMPANY ON THE MARKET RIGHT NO IM NOT IM JUST GOING TELL YOU THIS HAD THIS BIKE I RACED AND KEPT REPLACEING THE FILTER WHAT HAPPEND WELL I DECIDED TO TRY SOMETHING DIFFRNT THEN THE FACTORY FILTER LOOKED AROUND AND FOUND A TWIN AIR LIKED IT BOUGHT IT PRICE WAS RIGHT 14.99 THOUGHT WELL NEED FILTER OIL WENT GOT A CAN OF PJ1 FILTER OIL IN THE SPRAY CAN INSTALLED IT PUT THE FILTER OIL ON KEPT CHECKING IT IT NEVER GOT DIRTY EVER I NEVER HAD TO CLEAN IT I WAS IMPRESSED THESE PEOPLE MAKE A GOOD QUALITY FITLER WHITCH FIT BETTER THAN STOCK AND HAD REAL LEATHER AROUND THE BOTTOM AND I WAS PLEASED SO IF YOUR LOOKING FOR A REPLACEMENT AND YOU DONT WANT TO SPEND A ARM AND A LEG BUY ONE YOULL LIKE IT TO