any legit ESU upgrades for the 3.5?
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Joined: Sep 2004
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any legit ECU upgrades for the 3.5?
New to the forums. Tried to search and found nothing. Are there any legitimate ECU upgrades for the 3.5 engine besides stuff like the jet chip and similar? I'm looking for real ECU upgrades (new chip, piggyback or ECU flash) that produce real hp gains?
TIA
TIA
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