Yamaha XSR 900 (2016-) Akrapovic Optional Catalytic Converter Insert (For Use With S-Y9R8-HEGEHT) - Yamaha XSR 900 (2016-) MPS Racing products are all supplied in this

are all supplied in this kit USE OEM Rings

Z900/1000 73-80

but ideal for high hp turbo/nitrous applications

TVSRS1000GSX-2 APE Titanium valve Spring retainers as made in house by APE from titanium bar stock for maximum strength and lightness

The shim adjustable spring tops allow you to fine tune your set-up and discover what works best for you

Yamaha XSR 900 (2016-) Akrapovic Optional Catalytic Converter Insert (For Use With S-Y9R8-HEGEHT) - Yamaha XSR 900 (2016-) MPS Racing products are all supplied in thisRequired for full Euro compliance the Akrapovic performance oriented catalytic converter gives you all the sound and performance upgrades you re used to with Akrapovic exhaust systems. The catalytic converter is a honeycomb metal structure that incorporates precious metals (palladium, rhodium, and platinum) into its surface to convert poisonous carbon monoxide and unburned hydrocarbons into non toxic carbon dioxide and water vapor.