Aluminium intercoolers are an excellent way of safely increasing BHP by reducing the engine's inlet temperatures a denser air charge will enter the engine. This will make more power at the same boost level. All intercoolers are designed to give maximum cooling capacity while allowing for minimal pressure drops. ---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 petrol 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 Z4 35i E89 2009+ models BMW Z4 35is E89 2010+ models Please Note: Only Suitable for vehicles with N54 models.