Jetprime - Precision Control, Supreme Quality Jetprime Plug-and-Play Rear Light Eliminator, race use The kit consists of a CNC machined plate that replaces the original cover, a rubber cap to close the hole in the filter box and a specific connector to eliminate the solenoid. eliminates exhaust popping noise on deceleration and backfiring typically associated with aftermarket exhausts achieves true A/F ratio for fuel tuning. A/F ratio measurements are reliable frees up engine space can improve throttle response when used with full aftermarket exhaust systems enables complete removal of the PAIR system, including the valve, the PAIR cover and the associated tubing comes with an OEM connector for direct plug in, no cutting or splicing is required the rubber caps are special heat resistant caps for high durability the block off plate is made by CNC machined 7075 aluminium plug and play product, no need to cut wires race use only Part No. JP ES KIT01 Model compatibility Aprilia RS660 2021 - current