Got this for my old HPI MT2 and I am very happy. It was super easy to break in and starts right up every time. I'm running 20% nitro and an OS #8 medium plug and it's almost frighteningly fast. Great engine for the price, and parts for it are inexpensive and very available- a big upside if you have ever tried to get a piston liner ($80+) for an OS engine.
Tenia un motor igual en una firestorm y me duro muchos años, nunca dio problemas de nada y tienen mucha fuerza, se rompió por q callo al agua de sal en la playa,