All Gravity Performance intercooler cores are purposely engineered to provide increased airflow and more efficient air cooling. Each core is pressure tested to hold up to 3bar (43.5psi) of boost, enhancing the performance of your vehicle. ---High-quality bar and plate design intercooler core with professionally hand-welded end tanks ---Manufactured from the highest quality lightweight aluminium ---Stepped core design to maximise the volume best suited for your BMW diesel engine. ---Please note fitting instructions are NOT included ---We recommend all intercooler kits are fitted by a qualified mechanic to ensure the correct fitment Fitment ---BMW 5 Series E60/E61 525D, 530D, 535D 2003-2010 Models ---BMW 6 Series 635D E63/E64 2003-2010 Models ---BMW 7 Series E65 730D 735D 2001-2010 models.