FWIW, I'm currently running AP with an SPT intake with OTS stage 1 93 octane map and mixing 3 gals. of E85 with fill up of 91. Power is smoother, but could be better if tuned. (A few years back Cobb wrote a tech article that bashed this, saying the Legacy SPT intake is essentially not tunable and various threads can be found on LegacyGT.com They then changed the wording and is now their current white paper on Intakes.)

Companies that do this sort of thing should be closely scrutinized as they are obviously trying to sell more of their products. They probably would have a lawsuit pending if they didn't change.

But, yes you should run the AP as a first mod it is the better performance mod.