H&S

Lubbockguy1979

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The 6.0 uses a ecm and pcm together. They are tuned at the same time. Iirc. The 6.4 has a seprate tcm. This is why at one time spartan offerend a standalone tcm upgrade.
 

Mdub707

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Yeah, 6.0 we're talking about here. I know what the H&S does for the 6.4's.

For 6.0's, the 03/04 trucks take about 5 minutes to tune, the 05+ trucks take about 1 1/2-2 min.
 

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