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nightmare said:
what else are the benefits, besides a cooler engine? it's on a 2001 dakota r/t. thanks
Doesn't change the fan speed, in open loop mode a.k.a. WOT the PCM thinks that the motor isn't all the way warmed up so it enriches the fuel mixture. It's a really great mod if you run headers since they tend to lean you out. Pretty much does nothing for you in closed loop mode since the PCM is adjusting the air/fuel mixture by readings from the O2 sensor.

It slightly increases emissions but not much from what I've read.
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