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Tuning an LS3 in Chicago

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Old Jan 19, 2013 | 10:07 PM
  #21  
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Speed Inc tunes my car. They do a GREAT JOB!!
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Old Jan 21, 2013 | 03:42 PM
  #22  
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Originally Posted by krellio23
Guys, I need to get my modded NA LS3 tuned and I live in Chicago. The two places I've been told about are Speed Inc. in Schaumburg and Modern Muscle in Oswego. Can anybody give me a good recommendation on where to go get the car tuned?

Modern Muscle said the car would need to sit overnight because they need the engine to be cold. Speed Inc said the exact opposite, and that they tune the car while the engine is at operating temps. Does anyone have any insight to this as well??? I hate when I get different answers to the same question and I def don't wanna spend $500 on a shitty tune just to find out that the car runs the same as it does now. Any experiences one way or another? Thanks in advance guys!!
ALL dyno runs are made once the vehicle is at operating temperature. The reason Modern requested to have the car overnight is likely due to them making cold-start idle adjustments, we prefer the same.

We are offering tuning discounts through the end of the month. PM me or shoot me an email Tony@Speedinc.com and I will be glad to help you out!
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Old Jan 22, 2013 | 06:35 PM
  #23  
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Jim had my car dialed in within two pulls, drove perfect.
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