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  1. Blog
    I have a stage 1+ Unitronic chip in my 1.8t Jetta, if I put a K04 in would I have to upgrade my software?
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    the questions are..... having the apr stage 1 tune, would it still get some gains with a ko4? the turbo itself... can you just take a used one off of a stock vehicle? where can i get a decent priced manifold? other than the inlet pipe, what else will i need? do i need outlet pipe...
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