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thanks for your answer , I've contacted Terry Stamper for another problem that I have with the ALS setting. But this is a problem to find a tuner in the USA for a Gems engine management ...I might not replace my injectors looks to complicated for the tuning when you don't know too much about it. I n...
I have Gems plug and play engine management for a Subaru STI with a N 14 tuning( Terry Stamper) and I am replacing the injectors(bigger) and fuel pressure regulator ,I need a dyno tuning the only problem is that I live in the South east part of the USA . Do you have anyone that could tune my car ?