I have replaced the stock intake (mod quad/k&n) and installed a new yoshi slip on. My question is do I need to remap or install a new efi controler. It seems to run great but I don't know if it could cause any damage if I leave the stock ignition/efi controler. If anyone knows please let me know I don't want to kill the engine. The sales guy at a yamaha dealer ship said "it SHOULD be OK", not that I don't trust him but i don't. Any help would be great.