I noticed when I installed my Delkevic's that I seemed to have lost a bit of low-end and mid-range power and throttle response. Clearly some map changes were in store. I also wanted to try to lean out the rich spots to reduce the infamous and embarrassing exhaust stink. The PC3 should help with both objectives.
The install went ok. I had a bit of difficulty trying to figure out how to unplug the main connector on the ECU in the tight space under the frame, etc. I followed the directions to loosen the mud guard, etc. But it was still pretty tight to figure out.
I also had difficulty soldering the gray line to tap into the red/yellow line. I didn't have the PC3 tap since my unit was used and I read here that soldering is the way to go anyway. The problem was that there was very little wire to work with and the space was tight. I am going to go back and redo it by opening up the harness sheath and soldering on extensions to do a better job.
I went to mount the unit on the frame with Velcro in the position shown in the instructions. There is no way that would work as it is in the way of the seat base. I shifted it more towards the tank under where the manual in the seat base would be.
The first map that I tried was the "acclaimed" Two Brothers map from the PC site, aka "the Simpson map" from the PC3 Map Challenge thread:
Wow! This map brought the bike alive again, then some. The low end and mid range pull is smooth and strong and the throttle response was great. My butt dyno tells me that the bike is stronger than stock now.
There is a slight roughness at very low throttle and slow speed at about 2500 rpm, i.e. slow start in traffic. This isn't a big deal and I might try to play with the map numbers in this range later.
I ran this map with the buttons set at low +1, med -1, high -2 as per other using this map (see the thread above).
Unfortunately, the stink is still there. More fine tuning is needed. I only ever notice the stink at idle when the wind is at my back, so I will focus there later. But first, time to try more maps.
I ran the Two Brothers for a week, including a 23 hour road trip weekend. Next came the last LDH Mori map. Tough act to follow for my bike setup, altitude, etc.