Thanks the info guys, I was going to go with Ktuner but I got one more question.
If you go with Hondata's K-Pro & I find a 02-04 ECU(Not sure how easy or hard this will be tbh), I'd be able to keep my original ECU laying around incase I'd want to re-use it if the car was to be sold or something along the lines? Does it work like that? Freely swapping out ecu's & going back to stock?
There was a big sale on Ktuner & Kpro last week I should have hopped on that Ktuner, would have saved a bit of money smh...
RN Ktuner would be 680, & KPro 1100 Canadian, currently too broke to buy anything for now. Had to cough up some cash here & there, and then go tot a shop to cut out seized lower bolts from my struts for the rear coilovers & then alignment
You can swap ECUs like that, but IronGumby is right in that the O2 sensor is supposed to be changed as well.The major hiccup/hurdle/problem with having multiple ECU's is that you have to have them reprogrammed to your immobilizer to switch each time, no? Someone correct me if I'm wrong
If you really wanted Kpro you will need the ECU wiring harness adapter and the 02-04 primary oxygen sensor too
The immobilizer is not so much of an issue. With Kpro you can just disable the immobilizer. That sounds like a security issue, but from what I've seen it's pretty easy for thieves to get past the immobilizer anyway. My RSX was stolen with the immobilizer ENABLED and I was lucky enough to get the vehicle back in mostly one piece. Now the immobilizer is disabled, but I don't care because I have a real security system on the car now.
So you could just leave the immobilizer programmed to your original 05-06 ECU and if you ever decide to put that back in you will have the immobilizer still compatible and enabled with that ECU