I have a 2006 Lexus 470 GX. I either want to remap its ECU toward better MPG. Or get a good after market ECU that can help me toward better MPG.
Any Idea?
Good to have you on board mate, they both good ideas , but generally after market ECU's are a fair bit more tunable than stock ones, dono if you gonna get very far with reducing fuel consumption without losing a fair bit of power, car manufacturers generally do a good job at producing a good balance between performance and economy, so good luck with that.