I want to upgrade my ECU? Would this avoid the warranty in the car? Where should I send it? Has anyone done this to their car?

 

is there any aftermarket ecu for our car. i think i found 1 but im sure their are more.

 

Yes they are two Techno Square and unichip. I haven't seen any reviews of neither of them.

 

There's been a lot of info on TS since they have been doing it the longest.
But you have to go back into some early posts though to read of any impressions. Overall, most seemed satisfied with the results after adding the typical intake/exhaust mods. and then having a reflash.
Moving up the rev limit and opening the throttle 100% at WOT is one of the biggest advantages. But AF ratio should be tweaked too if you get into exhaust mods.
I've read little on Unichip.. some + some -.