This Blow Off, or Dump valve, is for the BMW N13 1.6 Turbo engines that have the electronically controlled bypass valve. This engine can be found in the F20/F21 and F30 chassis badged as 114i, 116i, 118i, 120i and 316i, 318i and 320i It is recommended for any vehicle where the boost pressure has been increased by an ECU software upgrade and for unmodified vehicles operating in warmer climates, as a solution to the many failures that have occurred, where the original rubber diaphragm splits, which causes a loss of boost pressure.
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