There web site says these are an improved OE design by BMW, are these able to take an increased Rev limit?
They also sell a locking kit for the M20 rocker arms that is supposed to help stabilize them, I'm assuming so they can take increased RPM's.
Anyone know anything about these?
They also sell a locking kit for the M20 rocker arms that is supposed to help stabilize them, I'm assuming so they can take increased RPM's.
Anyone know anything about these?



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