Does anyone know the part numbers for the b6 s4 front bumper, and every thing else to convert my a4 front only into a s4. Or guide me somewhere where I can find it. Also Ive been searching for a while now and found that the s4 is a direct replacement with no modifications unlike the usp kit, Is this true. Thanks Allen

 

Dude, it is just basically a replacment, depending on the year you have you might just need to change the front bumper, grille and headlights if you wanna get more detailed, i dont think you need to change anything else, it would be more helpful to inform the year of your Audi