Has anyone used the "RR RACING LEXUS 3XX OBD ECU UPGRADE TUNE" or the "VR Tuned Gearbox Tuning Lexus GS350"?
Was wondering if anyone has any opinions on them or which they feel is better?

 

Wondering as well.

 

Also looking for results/experiences with this

 

Was considering this myself, I think some of the IS/RC owners have used it. I'm intrested in the increased redline, although I don't know what would be truly safe for the engine. They are developing superchargers which should hopefully be out in the near future for these cars

 

Discussed here:

https://www.clublexus.com/forums/cl-...opment-16.html

and here:

https://www.clublexus.com/forums/rc-...their-car.html