I installed the pc2 and forgot about the tre, ran the bike about 10 miles for about a week. I was having stalling problems and then after asking about the metal noise I remembered making a tre going to install it and finding one already in its spot :coocoo so I took it off today and now when I really let loose on the throttle the engine will stop producing lurching me forward on the bike, backfiring/popping, and then suddenly taking off like a raped ape. I tried it out a few times (stopped), it only happens under 4k rpms, happens in all gears to include neutral, then I tried a few times rolling in a higher gear for less jerky motion and the same process happened. I think it may either be something jarred during an off I had about a month and some ago, or the fact that I have the euro full yosh map on the pc2. Any ideas?