The H2E would work with 250cc hybrids, no matter the nozzle size, BUT you would NEED to waste gate it. AND for 250 you would want the modded H2E. With 80% or 100% nozzles the modded H2E should clear most of the smoke up.. It should do it with 200% nozzles to. But it could be a little more smoky. But that all depends on your tunning and what you have for supporting mods..