Re: RotorPros install
pushed hard enough, theyll likely crack. Cross drilled works when the holes are cast not so well when they are drilled after the fact from my understanding.
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03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc...
'12 F150 FX2 Supercrew with Ecoboost daily beater
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