Bob,
I was one of the guys that rode Retro's 900, it was very smooth, better than my S4 with the PCIII and Dynotune.
My PCIII was $312 out the door, and the dynotune was $175, here in SoCal. It is definitely better with the dynotune than just with the website or CD maps. I can't do a chip swap or reprogramming on the stock IAW5.9 ECU, so it was either the PCIII or the full-boat FIM unit. I'm not racing, so the FIM unit seemed like a lot more capability than I'd ever need.
Just to clarify, the PCIII can only alter the air-fuel mixture. The FIM flashload_may_alter the ignition timing as well, but I don't know.
The PCIII allows you to alter the map any time you want, but if you're not going to mod your engine much more, that's no benefit.
I was one of the guys that rode Retro's 900, it was very smooth, better than my S4 with the PCIII and Dynotune.
My PCIII was $312 out the door, and the dynotune was $175, here in SoCal. It is definitely better with the dynotune than just with the website or CD maps. I can't do a chip swap or reprogramming on the stock IAW5.9 ECU, so it was either the PCIII or the full-boat FIM unit. I'm not racing, so the FIM unit seemed like a lot more capability than I'd ever need.
Just to clarify, the PCIII can only alter the air-fuel mixture. The FIM flashload_may_alter the ignition timing as well, but I don't know.
The PCIII allows you to alter the map any time you want, but if you're not going to mod your engine much more, that's no benefit.
