Originally Posted by STirocket
I've been running AP stage 1 for over two years now and I'm very pleased with it. IMHO (and I'm an EM noob) from the reading I've done on NASIOC it seems to me that the Cobb maps are very conservative and consequently safe. I personally noticed a BIG difference in the driveability of my car after flashing to stage 1 (I drove it stock for 6 months before flashing it). Not just HP and torque but it spread the torque over a much wider (flatter) power band, which made the car much more driveable than stock.
So I would suggest driving the car for a while with the Cobb stage II map and see how you like it. If I understand correctly from my research, a protune will gain you more HP/torque. The Cobb maps leave a lot of HP/torque on the table in the interest of reliability. So it's up to you whether you want to press the edge of the envelope or be satisfied with a reliable OTS (Off The Shelf) tune...
conservative does not mean safe!!! My Cobb VF39 map was consistently pulling timing..meaning...yes..knock on a shelf map. Not only is a protune safer and more reliable but you will make more power with better response and the onset will be smoother and more refined.