With twice the diaphram area and spring pressure of the stock wastegate; BigHead keeps the valve seated longer; raising peak boost significantly. Delivers precise boost control; improves Duramax; Cummins; Power Stroke acceleration.
• Fits Ford 7.3L (1999 - 1999-1/2) manufactured in 1998
With twice the diaphram area and spring pressure of the stock wastegate; BigHead keeps the valve seated longer; raising peak boost significantly. Delivers precise boost control; improves Duramax; Cummins; Power Stroke acceleration.
• Fits Ford 7.3L (1999 - 1999-1/2) manufactured in 1998
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