going to "larger" injectors doesnt nessesarily mean terrible milage, i went from 160cc stage 1s to same cc 80% nozzels and my milege went from 16-17 to 18-19city and highway is ~21-22mph unloaded. ive drove like a complete *** and beat the snot out of my truck in level 5 for a week and saw a 30 mile drop in total miles. i get about 280 out my 16 gallon tank on average but thats all city, driving 5 miles turning off, turn back on drive 3 miles, back 6 miles. small town high way goes upwards 350