Thinking about purchasing one of these controllers, can anyone give me some recommended settings for these mods? O2 delete, pair valve delete, Delkevic 8" carbon slip on and KDX snorkel. Thanks in advance!

 

My advice would be powercommander and a good dyno tuner. A/F makes a big difference in HP and TQ .
The reason I chose the PC is because a good tuner can adjust fuel at any given throttle position and RPM range while being hooked up to a dynojet program to make you a map. The EJK can not do that. I don’t think the price is much different between the two controllers but a good dyno tune will cost a bit more. I paid 385 total for a custom tune on my bike. IMO it was well worth it.

 

What year and model is your KLX. I'm not seeing and Dynojet controller for the FI 250, only 300 cc bikes.
I have a EJK unit on my 2018 250 and it is set up similar to how you want to set up yours and I'm using EJKs Stage 1 settings. Bike runs great with mpg in 60s.

Freakdaddy in SoCal

 

Put the EJK on my 18 model after doing the valve mod. Talked to an EJK tech and said settings were already set up for Stage one. I have only done the valve mod and removed the air box lid. Only issue I have with the EJK is there really wasn't any r ecommendations of where to locate it. I didnn't want it on the handle bar or dask, so stuck in in the air box with some rubber foam, am a bit concerned that it may unintentionallly reset via avibration, so am looking for a small plastic box to place it in so buttons won't accidentally be activated