Super Duper Moderator
Join Date: Apr 2005
Location: Orlando, Florida
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I would only do the UpRev if yuned with a dyno. Otherwise, IMO, it's just another best guess reflash. But I will admit that it does hold some promise, but at the risk of frying your ECU. A buddy of mine is heavily into the UpRev upgrade.
I know of at least two NA cars that gained about a 20 hp increase in power, with a torque incease as well, and a nice curve, with dyno tuning of a UTEC.
'06 Autumn Copper FX35 & '11 Alpine White Sentra