BTW,
You are correct, the S-1 PCM is inside the 05 model... it is also inside the 04 model... but without the programing. also it is inside the 04 and 05 Turbolite models but those cars produce 180HP. The reason, Software.
I guess you also know that the S1 injectors are in all those models excluding the 03.
The reason is that the first turbo engines came with Denso injectors flowing about 440CFMs their pulse-width is lower than the newer Bosch injectors that flow about 530 CFMs. .
The factory PCM adjust the Dutty cycle to in conjunction with the MAP, TIP, Knock, O2 and IAT sensors among others.
Modern day HP is a lot more than higher octane and more boost.
But then again, I may be wrong...
Ian
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