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Showing results for tags 'phatshaft 66'.
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Just picked up an. 07.5 that is deleted and running a PhatShaft 66 turbo. NO studs and stock fuel. Stock auto was freshly serviced prior to my purchase and shop said it was in good shape. QUESTION: I'm still new to the 6.7 game and curious what settings I can safely run the SR on without blowing trans or stock bolts