How many credits needed??

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12-29-2009, 02:58 PM

SILVERADO11

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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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12-29-2009, 02:59 PM

00ChevyScott

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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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12-29-2009, 03:07 PM

AKlowriderZ71

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Unless they are doing a 2-bar SD tune. That would be 4 credits.

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12-29-2009, 04:09 PM

SILVERADO11

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Quote:

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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12-29-2009, 04:18 PM

trever1t

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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.