If you current injectors have over 100K on them I would strongly consider replacing them as well.. For one, pricing on injectors continues to go up, so considering it's something that will need doing you can do it for less now then 6 months from now..

Plus, I'm really not a fan of double work...

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
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