Upgrade from your stock intercooler to the MAD stepped core intercooler for maximum performance and reliability! The stock BMW intercooler is small, inefficient, and cannot keep up with the high boost that your tuned car targets. MAD BMW intercooler will keep the intake air temperature in check, allowing your BMW to perform at its best at all times.    The MAD F chassis BMW intercooler uses a high fin density core for maximum cooling. This intercooler is compatible with stock and aftermarket charge pipes. Features: Direct stock replacement, no cutting required High-quality stepped core Lifetime warranty on defects and fitment 90 day return period All orders ship in 1-2 business days Spot on fitment Fits rear-wheel-drive & X-drive models   Fitment: 2009-2016 535 2009-2016 640 2007-2012 740