[Hellz]

yes to 37 and 38s on stock rims.

you will not need to regear, but it might be recommended to gain back any performance you will lose when you go to the bigger tires.

your speedo will by off when you go to the bigger tires. just firgure you will lose about 10%. speedo will say 60mph, but your only doing 54 mph.

what i did is bought a cheap predator programmer off Ebay for $99.
granted it was only for the 03 model, but thats what i have. ya im sure i could get better tunes if i bought a new predator tuner, but i cant justify the $350+ price tag on it.

also, be prepared to lose some MPG when you go to the big tires.

before on stock tires ( 35 inch) on 17 inch rims, i was getting almost 12 mpg
after i went to 20 inch rims with 37 inch tires, my mpg dropped to 9mpg... as in single digit 9.. and that was after alot of miles were put in. for the longest time, it read 8.something.