Instruction for intalling the turbocharger: 1. Exchange the engine oil 2. Exchange the air filter and the oil filter 3. totally clean oil feed and oil drain lines , make sure no damage no restricted oil flow 4. check Intake and exhaust lines , make suer no blocks no disturbs 5. Make sure for tightening up the screws and the clamp, no any leak for the air. 6. Sealant can not be used when installing oil inlet hole and oil outlet hole, only the gasket can be used.