Contact JohnnyCheese or another tuner. I bet they have opinions on the two. My experience with the PCIII, which I have, is it's hard to find a map to download that will work with your bike. I downloaded two from the internet from bikes that were similar in aftermarket mods and niether of them worked as good as taking it to a dyno and having it tuned to your bike. If I had it to do over, I would have left the bike stock.
Quote from: Dusty on March 10, 2009, 08:19:45 PMContact JohnnyCheese or another tuner. I bet they have opinions on the two. My experience with the PCIII, which I have, is it's hard to find a map to download that will work with your bike. I downloaded two from the internet from bikes that were similar in aftermarket mods and niether of them worked as good as taking it to a dyno and having it tuned to your bike. If I had it to do over, I would have left the bike stock. Might i ask why you say you would have left it stock? I haven't drop the cash on one yet, so if you could explain i might not get one.
I'll give my .02 on this. I did alot of research on the national board before getting my PC III. You will gain some more HP and Torque but not anything tremendous. I gained 6 HP and 8 ft.lbs. of torque which isn't bad. is it really worth the $500 to $700 your going to pay to get the PC III and custom map? this is what you have to decide for yourself. To myself the small increases of HP and torque are not the selling point for me. What did sell me on the PC III is how much more enjoyable the overall rideability of the bike is. I have no more low speed surging, shifting is smoother, gas mileage improved, throttle response is much better, and is just overall nicer to ride. these bikes are detuned from the factory to pass emissions, so by properly tuning them makes for a nicer ride. the X is lean at the low RPMs(for emissions) and rich at the higher rpms(not sure why). the lean condition is why you get the popping at decell. any aftermarket add-ons that increase air flow, the popping increases. if the popping is the only thing you want gone get a cobra fi2000/fuel pak or the similar and that will do it. if you want an overall smoother and nicer ride try the PC III. It is imperative that it be tuned by someone who knows what they are doing or your wasting your money. talk with johnny cheese on that. The nice thing about the pc III is it can be tuned to your liking, you can get a "balls to the walls" power map, or an "fuel ecnomy" map, or like I did "the in between, little of both worlds" map. It's really up to you to decide what it is exactly that you're trying to achieve, good luck.BTW, to answer the original question. the difference is the fuel pak only adds fuel, tha PC III adds and subtracts. the only area when you need to add fuel to the X is at low RPMs. other than that the fuel pak isn't doing anything.