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  • N54 Flash Only for 500whp
    N54 Flash Only for 500whp
    $1,449.95
    Enter code $150offDIYP at checkout for $150 discount N54 Basic 500whp Package  for 135i and 335i only! This package is for those looking for a fuel system upgrade that will support up to 550whp on ethanol mixes or...
  • N54 Flash Only for 600whp
    N54 Flash Only for 600whp
    $1,549.95
    Enter code $150offDIYP at checkout for $150 discount N54 Basic 600whp Package  for 135i and 335i only! This package is for those looking for a fuel system upgrade that will support up to 650whp on ethanol mixes or...
  • N54 JB4 Integrated for 500whp
    N54 JB4 Integrated for 500whp
    $1,449.95
    Enter code $150offDIYP at checkout for $150 discount N54 Basic 500whp Package  for 135i and 335i only! This package is for those looking for a fuel system upgrade that will support up to 550whp on ethanol mixes or...
  • N54 JB4 Integrated for 600whp
    N54 JB4 Integrated for 600whp
    $1,549.95
    Enter code $150offDIYP at checkout for $150 discount N54 Basic 600whp Package  for 135i and 335i only! This package is for those looking for a fuel system upgrade that will support up to 650whp on ethanol mixes or...