Quote:
Originally Posted by humfrz
I still maintain that a "tune", just because of a TRD Intake and cat back exhaust, would not yield any significant increase in power.
But, I'm not a tuner ..... 
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Even with a simple tune and no other changes, he can have a 10-12hp gain. I wouldn't do it, but it is possible. With the trd catback exhaust, the intake and a tune he'll be closer to the +20hp limit.