"hey i was wanting to know how hard it would be to get 210 rwk out of a sidi on e85"
To get a genuine 210 rwkw in a SIDI on e85 octane fuel would be an easy task and but would require a various mods. To assist you in a better way please let us know further about your vehicle whether you have an LLT or LFX. If you are not sure please supply us with your motors month and years build date and we can further assist. We do have available a few different performance packages to suit as shown below: Knowledgebase -
If you have any other questions please do not hesitate to ask