APk 07-15 Mercedes-AMG M156 / M159 Titanium Valve Spring Retainers
This set was designed to specifically address the issue of unnecessary mass within the factory valvetrain. It helps to eliminate a considerable amount of weight relative to the factory steel parts they’re replacing: Our testing shows a 39% weight reduction and we’ve provided the pictures to prove it. Perfect fit, finish, and reliability!! Extensive street testing on our own daily-driven E63- AMG proved that these parts work flawlessly under any condition without any sacrifice. We STRONGLY believe that you can’t be serious about performance and / or efficiency if you don’t recognize that weight (reduction) plays a major factor in both. It does make a difference, no matter how small the detail. Please check our other listings to see additional parts we’ve developed and are offering for the M156 / M159 AMG engine, as well as other vehicles within the Mercedes family.
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