I'm running an '01 WR426f with grey wire clipped, no airbox lid, an FMF powerbomb and an FMF titanium 4 can. It ran fine before as I was running a 4.1 powercore with the spark arrestor in it. With the new Ti can it's backfiring and fireballing a lot. The low end seems to be down too. My question is what jets are people running to manage this? I know fmf makes a kit but it's like $75 or something and seems a bit much if I only need a pilot and a main.