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  1. Car Problems? Saab 9000 Only
    Put BPC valve from my car on my dads 1998 CSE and it does not overboost. (BPC valve is good) (he is pumped too cause his BPC was actually bad stuck in base boost so now he has full boost) Hooked the compressor line straight to the wastegate and it does not over boost but does boost to 3/4-4/5...
  2. Car Problems? NG900 or old 9-3 Only
    Car is a JZW 3+, with Viggen TD04 and big FMIC: I've still got my strange lurch during WOT. New NGK BCPR7es-11 plugs, gapped correctly and a newer DI. It will spike at nearly 30 and drop to about 22 and lurches, like a fuel cut, in that area. I was told the BPC is likely the culprit. I...
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