Hey guys new member here, I live in the US and i recently put a full M4 exhaust on my GSXS 1000 and sent the ecu out to be flashed, i didn't bother putting a fuel stabilizer in over winter cause normally i run around on the bike still but i ran into issues with the parts and it sat without running for over a month. I finally got it all together and put the new ecu in and was out riding and any time I'm going about 35 it starts to bog and sputter hard. The higher the gear I'm in the worse it runs as well. Do you think this is because of the fuel sitting? Or do you think it could be the new ecu? Thanks!