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Discussion Starter · #1 ·
Hi Everyone, Has anyone had a supertune from this firm? They are no longer in business, but Cadillac used them as their official full line tuner. I got this car a few months ago thru an estate and would like to find out what was done to it.
 

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When in doubt, start over and have it retuned. Tuning is like anything else, approaches and styles can evolve over time.

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Discussion Starter · #7 ·
Hi Everyone, Has anyone had a supertune from this firm? They are no longer in business, but Cadillac used them as their official full line tuner. I got this car a few months ago thru an estate and would like to find out what was done to it.
Thanks for your responses and reccos, however , do not need any tuning, this car is a rocket, faster than my 07 super snake and FF5 cobra.. I beleive it was modified by D3 Cadillac Tuning Program, but have no paperwork to verify. Has anyone out there used them? Just want to know there package levels without taking the car apart. They are no longer n business.
 

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I beleive it was modified by D3 Cadillac Tuning Program, but have no paperwork to verify. Has anyone out there used them? Just want to know there package levels without taking the car apart. They are no longer n business.
I have heard varying reviews of the D3 program - mostly negative.

IMHO there is a reason they are not around anymore
 

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It doesn’t seem like you know for certain even what tune is on the car..just saying, that’s a red flag to me. I would at a minimum pull the tune and have a still-existent tuner review it to cover your bases.


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They might know ….

 
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