THE CARBONSMITH 2020+ APRILIA RS660 CARBON FIBER AIRBOX WAS MADE TO INCREASE AIR VOLUME AND TO SMOOTH AIRFLOW INTO THE INTAKE. MADE FROM AEROSPACE GRADE PRE-PREG CARBON FIBER, THIS AIRBOX IS OVER 50% LIGHTER, 20% LARGER, AND 10X AS STRONG AS THE OEM PLASTIC AIRBOX. WITH PROPER TUNING WE GAINED +2 HP ABOVE 6K RPM. OVER 1 LB WEIGHT SAVINGS 20% LARGER THAN OEM 2% POWER INCREASE ABOVE 6K RPM REQUIRES RE-ROUTING OF OEM WIRING AND ECU INCLUDES NIPPLE FOR CCV INCLUDES AIR TEMP SENSOR MOUNT INCLUDES UNI FOAM FILTER RACE SPEC ONLY- BUILT FOR MAXIUM PERFORMANCE AND STRENGTH - NOT FOR STREET USE INCLUDES RUBBER SEAL INCLUDES LID �THESE SHOULD ONLY BE INSTALLED BY A PROFESSIONAL MECHANIC� In order to maintain our extremely high standard of quality products, CarbonSmith AIRBOXES are not available in mass quantities and are made to order. �Each AIRBOX takes 2 WEEKS TO MANUFACTURE and are MADE TO ORDER , therefore your patience is very much appreciated. All prepreg parts are hand made, therefore exact pattern layouts and shape may vary from part to part. PLEASE READ OUR TERMS & CONDITIONS BEFORE PURCHASING, THANK YOU!