I bought a .28 engine called EN from "紅星" about a month ago just to replace my original Savage 4.6 engine, its outlook looks like the Axial one (perhaps both are made by the same factory!) and so far it runs ok since, just a bit hard to start when it was new. I think it has .32 too but I did not get that one though as I felt .28 is good enough for me anyway but one of my friends did get the .32 for his truck after he saw mine was running and it seems not bad too, but I think the engine is made in Taiwan, may be you can try it as well.