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  1. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    hey guys awhile back i made a thread about my boost issue(only spooling 8-10psi max) and im on an apr stage 2 tune with a forge 007 dv, 3" catless turbo back exhaust, the past few days my car sounds like its pulling way way way way too much air or something(Alot like the surging issues, just...
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    okay so my car is on unitronic stg 1+, was just about to go to stg 2 but now i ran into a problem. ive always noticed that when i would hit 20+ psi, boost would surge very rough, BUT it would only surge when you would engage boost when the rpms are low, i.e. if youre in 5th doing 55 or 60 and...
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