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cleaning or acid

  1. Tuning & Upgrades
    Hi Guys, Rebuilding 147 2.0 Head and i'm searching the net for the best Dip Cleaning method to bring it back to factory Birth :) I have heard of Dishwasher and Brick/Concrete acid, however the wife will Murder me for mutilating the Bosch and i'm not to sure on the Acid, Will it eat into the...