I recently got a biturbo for my 08 Tomos LX. The top end was great, about 40+ mph. The only think is the low and mid really sucked. Im thinking of going back to my stock Tomos exhaust for the better low and mid range. To go along with the biturbo my bike was up-jetted to 58 and i got a uni air filter added. If i put my stock pipe back on, do i need to down-jet? Or can i just running it fine with the 58 jet? I guess it will just run a little rich?