True, my pal done it for 6 yrs on his. Although, dyno time (not an all out tune) is a nice tool and cheap at $100 an hour (compared to the $2000 dollars for the charger and what not) because it can pick up a good deal of tq and hp left on the table as well as checking your A/F ratio.poneypower89 said:Forget your fears about a tune. If the engine is stock and all ur doing is boost'n. You CAN get away with an FMU and no tune. Don't push it TOO hard.. stop before you pass 10psi.