Unlike the standard rubber OEM hoses which deteriate over time our hoses are constructed using a high quality silicone Polyester or Nomex compound. They are further reinforced with a polyester layer to provide a more rigid structure. This item replaces the Weak OEM black plastic PCV breather pipe with high Quality reinforced Silicon item. You are getting a replacement silicone item for less than the OEM rubber pipe that will eventually fail again. It will fit on all Z20LET and Z20LEH engines! Replaces the hose from the front right of the rocker cover to oil return pipe, which over time becomes blocked and doesn't do it's job.
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