Bought this kit with the EZ Start CDI for my 2020 SSR 170TX. Bike used to take 20-30 kicks to start (easier if you cleaned off the plug before every start)...now its starts up in 1-2 kicks! Haven't had any noticeable power loss. This Ignition system rocks!! Well worth the money, wish I had tried it sooner! One thing to note is that the CDI does not come with any sort of bracket to fix it to the machine. I ended up designing my own bracket and 3D printing it. Now the CDI is bolted up against the frame like the previous one.