Thread: Would this be safe to do?

Just got my Overkill tune in the mail today. I have Speed Daddys and a 3.4 pulley to put on too but I'm gonna be working 60-80 hours all December so I'm not gonna have time to put the headers and pulley on until atleast January. Would it be safe to go ahead and put my Overkill PCM on without the rest of the parts or should I definitely wait?

Assuming your only missing headers and the pulley you should be fine. Stock pulley and manifolds shouldnt cause any issues on his tune. Now if you run the 3.4 and no headers.... bye bye engine.

Yup go ahead and throw it in you'll be fine.. Just wait on installing the pulley though!


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Originally Posted by REDCOMPG

Yup go ahead and throw it in you'll be fine.. Just wait on installing the pulley though!


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Come on now. Gimme more credit than that lol. That's common sense to anyone's whose been a member on this forum for longer than a week.

Hey just thought I'll throw that in there you never really know. Common sense isn't so common nowadays lol.


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Is the tune catered towards the 3.4? I'd just wait till you can do everything, if that is the case.

There is no benefit to installing a pcm tuned for better flow and higher boost without them being present.
You'll just waste gas.

I was just anxious to see how it would change the transmission and little things like that.

Originally Posted by REDCOMPG

Hey just thought I'll throw that in there you never really know. Common sense isn't so common nowadays lol.


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Yeah no **** have you read the warning labels on things..........

If you put it in, you'll gain a better performing trans, but the timing and fueling will all be for the higher boost associated with the 3.4 pulley. I would wait.