Pre 04.5 coupes can only hold one map. They also require some rewiri g of the obd2 port As documented by up rev.

That does not even apply to the issues in this thread.


These G's have a totally different ECU.



UpRev Osiris don't work on them at all.

Ya....Osiris is not part of this conversation. They do not support our ECU and do not plan to at any point

Still waiting for a breakthrough...anyone?

Yeah, The plug and play haltech for the older grey ecu cars. Contact me for more info.

I'm hoping to test an Osiris tuned 04 ECU on a swap harness by August.

How do you think that will compare with plug and play haltech?

Price / performance

Also, does anyone know if tuning will improve my fuel economy?

Haltech is a standalone...better option but if an ecu swap worked it would be a cheaper option which is still awesome.

In the ECU swap case, you would need to change how many parts to make it work?

Nice! Email me when you try it!




As of now its not tested, It "should" work with just a adapter harness and new ecu w osiris. But its been around a year and still has not been tested so unless there is high demand I will stick with the PNP Haltech system.

Supposedly some guy out here in Miami has found a way to make NisTune work on our cars I am going to meet with him real soon so validate this claim.

^Def wanna hear more about that!

updated info on this?

Still awaiting on the guy from the stealership so we can meet to discuss how he plans on tuning the sedan.... (had a hurricane/tropical storm hit us)

you florida guys...always scared of a little rain and wind...
haha

j/k