Upgrade twin Turbo for AUDI RS4 S4 2.7 K04-025 026 Turbocharger B5 A6 Quattro
K04 -025 K04-026. For Audi RS4 V6 Bi-turbo 2.7L P with AZR/ASJ Engine 2000-2005. For Audi A4 V6 Bi-turbo with AZR/ASJ Engine 2000-2005. Turbo Model. Turbo Part Number & OEM Number. Note: for the car model below need modification.