If you use the Hurst Blackjack shifter, you won't have to alter the factory console at all. Mine looks 100% stock sticking out of my factory console. As for modifying the trans tunnel, the only mod I had to do was to enlarge the shifter opening hole about a half inch towards the center of the tunnel to clear the shifter housing. I probably could have gotten away without cutting but I didn't want to do the whole job only to have a rubbing issue later. It only took about 10 extra minutes with a cut off wheel and then I was good to go.