Greetings and salutations all! Tis a swell forum you have here.
I have a 99 grand prix gt(more research at the time of purchace and I'd be typing gtp here! darn it!!) lol. Anyways I really like the car but it's sad how the gm engineers and have it programmed. So I'm here looking for advice about Which tuners support the 99 gt, aswell as which brand pcm would be worth buying? So far from what I've read in the forum there seems to be lots of bogus reflashes. Also can someone explain the typical damage that a
L67 suffers when it comes apart?