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  1. 95 PA Ultra l67

    Introductions for new members
    Well I got my new baby back in April, a 1995 Buick Park Avenue Ultra (freakin mouthful). Needs work so I’ve been digging through old threads across multiple forums about maintenance and possible mods for my series I L67. After weeks of research I’ve decided to tune up and restore performance...
  2. 2004 grand prix gt engine build ADVICE PLEASEEEE

    Naturally Aspirated
    I have an 04 grand prix gt, love the car. I currently only have lowering springs and a KandN intake system. I know I need a new pcm but what should I get done along with it? Id love for someone with some experience modding a natually aspirated 3800 series 3 motor to help out a bit. When i...