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Overkill?

M

mick777wauchope

New member
Does anybody have an Overkill PCM for their Grand Prix GTP (mine is a 2000)? If so, is it worth it for a "plug-and-play"? And what is the fuel economy difference?

Or what is Overkill compared to Intense?
 
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I have an Overkill on my 97 GTP and love it I could really feel the difference as for MPG well I did notice about 2-3mpg better . I had an Intense tune on 05 CompG and it was alright not as good as Overkill.
 
Got an overkill tune in my '00, my friend's got one in his '01 topswap, and I'm getting another one for my '04 comp-g soon enough. They're worth it for a canned tune.
 
I'm just worried on what to get because all over the internet people are saying mixed things about both Intense and Overkill. Some say Intense is better, but idk.
 
Its all a canned tune, so IMO None of them are "better " ZZP included...

What does overkill do as far as "modding/tuning? Change fuel maps? add timing/spark? Without being on a dyno , thats kinda ballsy.. Especially if your dropping pulley size..

I have an 06 GT, Is overkill the guy that supposedly fixed the issues with that year PCMs?
 


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