What year is your E? I'd wager she already has a rev limiter in the FPR...besides, I6's don't mind being over rev'd quite as much as V's.. The M110 is nearly indestructable...well, I did see one get killed..fellow ran it out of oil and threw a rod.

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
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Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta