Jetprime - Precision Control, Supreme Quality Jetprime PAIR Circuit Eliminator Cover for Kawasaki and Yamaha models 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 recommended for race use only Part No. JP ES 033 Model compatibility Kawasaki 1400GTR 2008 - 2020 Kawasaki Versys 1000 2012 - 2022 Kawasaki Ninja 1000 2011 - 2022 Kawasaki ZX-6R 2003 - 2006 Kawasaki ZX-6R 2013 - 2022 Kawasaki ZX-10R 2004 - 2022 Kawasaki Ninja H2 SX 2018 - 2022 Kawasaki Z750 2007 - 2012 Kawasaki Z800 2013 - 2016 Kawasaki Z900 / RS 2017 - 2022 Kawasaki Z1000 2003 - 2022 Kawasaki ZH2 2020 - 2022 Kawasaki ZX-14 / R 2006 - 2021 Yamaha FZ6 2004 - 2008 Yamaha FZ8 2011 - 2015 Yamaha FZ1 2006 - 2012 Yamaha MT-10 2016 - 2020 Yamaha XJ6 2009 - 2015 Yamaha YZF-R1 2004 - 2022 Yamaha YZF-R6 2003 - 2022 Yamaha YZF-R7 2022