Or any similar roms, I've tried the converting the definitions from Senate's thread but none of them are working.

Thanks for any help!

 

Unfortunately the 2004+ lancers didn't receive as much love as the 02-03 lancers. If you plan on boosting you can run a evo 9 rom or roads spike huge map rom for the 04-06 auto lancers. Well it looks like your auto so the ONLY choice you have is road spikes roms if you plan to boost. You may want to just TEST write it before you actually write it to your rom and be sure to save your original rom. Honestly I don't think the stock roms are really worth messing with if you plan to stay NA. There are a lot of guys that went NA and didn't make to much power. Forced induction is the only real way to make serious power. Since you're from Singapore I'm not sure how your rom will take a US rom. Just looking at the size of your rom its quiet a bit smaller. The autos here have a 512(?)kb rom and the manuals are 256kb if I remember.

 

Thank you for your reply, jakermeister.

The ROM is smaller because its zipped, uncompressed its 512kb.

I have some experience in tuning NA cars and I think there is improvement to be made for both timing and fueling (the car runs way too rich at WOT for NA cars).

 

Nice, I didn't bother to open it because I'm at work. You may be able to find a US rom with a definition? I think the opensource website might have a rom and definition there? I'm not sure though. Or you could try road spikes roms and see how it does while NA?