I recently installed a new exhaust system from victoryonly.com and now I think i need to remap the EFI. Upon starting it will spudder a bit and make all sorts of popping noises and then runs fine for a bit. Also check engine light has come on now. And suggestions on how i can do this with taking it to the dealer?? If the dealer is the option what will thr price be at $80 per hour?? Thsnks!