Flat, low-profile, hex head to avoid stank, old, contaminated oil buildup that's common for the factory internal torx bolts.
Slightly larger flange diameter to allow greater clamping force without any clearance issues.
FACTORY STOCK BOLTS: 376 grams
APk TITANIUM BOLTS: 219 grams ⇨ ⇨ using more material.
This bolt 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 bolts they're replacing. This set provides perfect fit, finish, and reliability!! Extensive street testing has proven that these parts work flawlessly under any condition without any sacrifice.
Oil lightly. Torque to factory spec. DO NOT OVER-TORQUE.
Our bolts are unlike anything you've ever seen, with features that scream "lightweight functionality." 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 people looking for stealthy advantages for their vehicles within the Mercedes family.