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How many credits needed??

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Old Dec 29, 2009 | 02:58 PM
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Default How many credits needed??
How many credits needed to tune my 06 silverado? I have a local shop telling me i need to pay for 4 credits for them to dyno tune my truck does that sound right? Thanks.
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Old Dec 29, 2009 | 02:59 PM
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2 credits. The NNBS trucks have to have 4 credits because you have to tune the engine and transmission controller with seperate credits.
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Old Dec 29, 2009 | 03:07 PM
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Unless they are doing a 2-bar SD tune. That would be 4 credits.
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Old Dec 29, 2009 | 04:09 PM
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Originally Posted by aklowriderz71
unless they are doing a 2-bar sd tune. That would be 4 credits.
what is a 2-bar sd tune, and i why would it take 4 credits. Thanks for the info.
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Old Dec 29, 2009 | 04:18 PM
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bar is a measure of pressure. 2-bar would allow your PCM to 'see' the positive manifold pressure from your blower. A custom operating system is used, cost = 2 credits.
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Old Dec 29, 2009 | 06:49 PM
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thanks for the info, i will have to fine out if thats why they are charging me four credits
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Old Jan 18, 2010 | 08:21 PM
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Originally Posted by 00ChevyScott
2 credits. The NNBS trucks have to have 4 credits because you have to tune the engine and transmission controller with seperate credits.
Only 2 credits for my NNBS.
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Old Jan 21, 2010 | 02:39 PM
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Credits? Are these paid to the state for emissions?
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Old Jan 21, 2010 | 04:55 PM
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Originally Posted by illMATTic
Credits? Are these paid to the state for emissions?
no, it's a "use" chage from the software mfg.
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Old Jan 21, 2010 | 08:07 PM
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LOL got ya.
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