Quote:
Originally Posted by ScionFrsFan
How do you buy the cable to tune the car yourself? Is it hard?
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I agree with the post under you, that tuning a car is not something you should take lightly. It is a great idea to find a tuner that you trust that is local to at least provide a base map for you, and then when you fully understand how certain parameteres will change the performance of your vehicle should you start to tweak the tune yourself.
The nice thing is that our cars do have high variance in some of the parameters (thank you toyota for utilizing JIT manufacturing on all of your cars haha), which can make up for the difference in some early tuning mistakes. Each car has different variances in the mechanical parts being utilized, which is why our ECUs "learn" the configuration from each canned tune provided at the factory.