AN6 Turbo Oil Pan Return Drain Plug Aluminum Adapter Bung Fitting No Welding Size: AN6 Finish Anodized Black Material: Aluminum Oil Return Pipe to tap into oil pan All NA To Turbo Project Needs To Drill A Hole On The Oil Pan And Then Weld A Plug Or Fitting For Turbo Oil Return This Plug Is A Bolt On Setup Only Drill A Hole On The Oil Pan, And Bolt It Tight Inside The Oil Pan And Seal It. No need for any welding!