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Cat efficiency check (CEL) removal for de-cat downpipes (for off-road use)
Fuel Grades - Multiple octanes from which to choose
At its core Dinan offers 2 base options
2019–present F91/92/93 M8
DINAN COLD AIR INTAKE - 2015-2021 BMW M240I/340I/440I mk7.5 Cat efficiency check (CEL) removalFollowing in the footsteps of the immensely popular and heralded intake for the BMW N55 engine, the next generation of 6 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately producing a
