Quote:
Originally Posted by kcodezd
I did notice the difference. Dollar for dollar the 55 can make more power and torque than the 63 for sure. The reason I didn’t go for 55 was age and the dreaded electronic brakes on the pre 06 models. I was avoiding an expensive repair that sounded inevitable. However the bills work out same either way..
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Do you know about the M156 head stud and camshaft issues?