Dampened Oil Pick Up EJ25 & Twin Scroll TurboBACK TO THE BASICS. Our dampened oil pickup pipe, fitted with our Anti Surge Adapter is a product that every engine build or rebuild should think about utilising. Oil surge on the Subaru Boxer engine is a well documented problem, and our dampened pickup can greatly reduce this issue. Designed to ensure that the Anti Surge adaptor always sits as low as possible into the sump, which means that even during spirited driving, the pickup should always be