BMW cold air intake fits BMW 520i / 525i 1990-96 (E34) with M50 6 cylinder motor. High performance air filter for better engine response. Kit includes high flow air filter, intake tube, connection hose, mounting hardware, bracket and installation instructions. SPECIAL NOTE: Early 1989-1990 with the M20 6 cylinder motor may have a rectangular mass air flow sensor. This CAI will NOT work on these cars! Only works with round MAS which are used from 1990-96.