that stock exhaust has got to go. Modifying it only produced a 1 mph gain. The closest thing is to get a Revival Biturbo and cut out a notch on the back of the header pipe at the flange, then beat the flange down and sew it up with a new weld there
that stock exhaust has got to go. Modifying it only produced a 1 mph gain. The closest thing is to get a Revival Biturbo and cut out a notch on the back of the header pipe at the flange, then beat the flange down and sew it up with a new weld there
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