The Stage 1 adds 30hp to your snowmobile without changing any parts. With the Stage 1 we have almost doubled the throttle response while improving fuel economy. This reflash is the perfect choice for the rider that wants a good improvement without having to deal with the sound of free flow exhaust system. The Precision EFI knock system is include in all our reflash. Perfect for the trail The stage 1 is available to be installed by any of our dealer, just bring your snowmobile or ecu and they will upgrade it. This reflash fits all 2017 & up 998 turbo engine – Arctic Cat 9000 series ( ZR9000 , M9000, XF 9000, Thundercat ) – Yamaha Sidewinder – SRX / L-TX / M-TX / X-TX / B-TX Find your dealer here