High Performance DC Racing No Rev Limiter CDI for 50cc – 150cc GY6 Scooters and Go KartsSPECIFICATIONS: DC Pulse6-Pin ConnectionCOMPATIBILITYBMS – Apache 150, Astro, Bemine, Grandprix 150, Heritage 150, Interceptor (Tiger), Legend, Palazzo, Pinnacle 150, Romans 150, Rosetta, TBX 150, Team Guy 150, V9 Evo, Zen KingEaglecraft – Cabretta, Falcon, Verona, VintageFlyscooter – Cadenza, Il Bello 150, La Vie, Rio, TrekLance – Duke Touring 150, F4 Interceptor, GS-R, Milan, Phoenix, Venice, VintagePuma – 150cc ScootersSSR – Interceptor, Legend, Marina, Pacifica, Rowdy, Sonic, VeronaTNG – GS 150, Milano, VolareZNEN – 150cc Scooters**NOTE: This is a DC pulsating CDI unit that will work only on ZNEN brands such as Lance, Flyscooter, BMS, SSR, and Puma.We have tested this on some 250cc Go Karts and it worked. Please make sure that your unit uses a DC system and NOT an AC system. This itemis non-refundable.**NOTE: Electrical, High Performance, Aftermarket items are non-returnable, please