Originally Posted by cjtamu

Just wondering if there are any distinct advantages to the 528 software over the 422 (cooler motor temps, more boost, anything like that?) or if it's just a personal preference thing. I just installed a GT 2.0 LPF and Trinity Nemesis 17.5 in my car this weekend, and it has the 422 software on it. have not had a chance to hit the track with it yet, but ran it about 8 minutes in the street. Felt great, stoopid fast, temped right at 150, but ambient air temps were only low to mid 80's. In less than 2 months we'll be close to 100 deg F here, so the cooler I can get it to run (and still make mad power) the better.