Jetprime - Precision Control, Supreme Quality Jetprime Plug-and-Play PAIR Circuit Eliminator Cover The secondary air injection system (PAIR) routes fresh air from the airbox to the exhaust system in order to aid the combustion of unburned fuel in the exhaust. This system is designed to improve emissions on stock exhaust systems, but will cause exhaust popping and backfiring when you fit aftermarket exhausts. The CNC machined plate replaces the original cover and the rubber cap closes the hole in the filter box. 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 the rubber caps are special heat resistant caps for high durability the block off plate is made by CNC machined 7075 aluminium included in PAIR Circuit Elimination Kit JPESKIT04 recommended for race use only Part No. JP ES 005 Model compatibility Ducati Diavel / S 2011 - 2019 Ducati Monster 821 2015 - 2021 Ducati Monster 1200 /R/S 2014 - 2021 Ducati Multistrada 950 2017 - 2021 Ducati Multistrada 1200 / S 2010 - 2017 Ducati Multistrada 1260 / S 2018 - 2020 Ducati Multistrada V2 2021 - 2022 Ducati Panigale 959 2016 - 2019 Ducati Panigale 1199 2012 - 2017 Ducati Panigale 1299 /S/R 2015 - 2018 Ducati Panigale V2 2020 - 2022 Ducati SuperSport 936 /S 2017 - 2020 Ducati SuperSport 950 /S 2021 - 2022