well it's going to be extremely expensive. for the quarter panels, you can't just replace them. you have to cut off the part that goes over the wheel up to around the gas door and weld the RS4 fenders on, grind, sand, prime repaint. to make the fenders fit together well you'll also need sideskirts. i really don't think it's worth it unless you're going to show the car or have money you don't know what else to spend on.

 

body work alone is gonna cost more than your AT FWD N/A car

 

Achtuning carries the kit for 10 grand. I've seen couple kits that people bought but wanted to go different route up for sale. They usually go around 4 grand for the fenders only.