BMW Expansion Tank Cap (Bayonet Type) | 1967-1989 B90TPLUS This change in exhaust routing

This change in exhaust routing results in an increase of approximately 15 whp (horsepower at the wheels) and 19 ft-lbs of torque at 4000RPM

79 oz (53 ml)

With silver crest

Engineered through a collaboration between Helical Valves and TXR in the United Kingdom

BMW Expansion Tank Cap (Bayonet Type) | 1967-1989 B90TPLUS This change in exhaust routingExpansion Tank Cap (Bayonet Type) for 535i (1985 1988), 535is (1988), 630CSi (1977 1978), 633CSi (1978 1982), 635CSi (1985 1989), 733i (1978 1984), 735i (1985 1987), 2002 (1967 1976), 2002tii (1971 1974), 2800CS (1970 1971), 3. 0CS (1971 1974), Bavaria (1972 1974), 1602 (1967 1971), 320i (1977 1983), 528i (1979 1981), 530i (1975 1978), 533i (1983 1984), 1600 (1967 1971)