Can Doryoku modify your valve cover? Yes we can! Not a lot of coaters will provide this level of customization. Whether it's adding a simple bung or completely shaving an OEM feature, we've probably done it before. Whatever you can dream of, we can knock it out. Also keep in mind that all fabricators aren't the same! When drilling holes and adding bungs to your cover, where do you think those shavings end up? Behind the baffle. When you have modifications done by us, you get a cover that's completely free of dirt, debris, and metal shavings.
AN Fittings





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ORB Fittings




Shaving/Deletes:
Shaved letters

Shaved Corner Tube

Shaved Rear Tube

Timing Belt Cover Mods:



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Doryoku Billet Stainless Steel -10AN Fittings:



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Doryoku D-Series Billet COP Rail:




