i installed the TST #6 over the holiday and am extremely impressed with the results... lots more power, especially in the mid range... one question for those who fully understand the cummins beast... what exactly does that star wheel do or control. . i adjusted mine counterclock wise and it seems to be a tad quiter now... maybe just my imagination... i assume the wheel has something to do with the air/fuel supply????
thanks in advance.
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'94 2500,4x4,SLT,auto,
3. 54,Prime-Loc,TST #6/230, 75,000 miles
thanks in advance.

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'94 2500,4x4,SLT,auto,
3. 54,Prime-Loc,TST #6/230, 75,000 miles