K03 vs K04 Turbo for the Audi & Volkswagen 1.8T - Grade Auto Part - Blogs
Can anyone provide input regarding upgrading a K03 to K04 turbo like this one in a b6 A4? : r/cars
K03/K03s Advice — 1.8T Tuning
Identify turbo K03 vs K04 | SEATCUPRA.NET
Technical Information about running a K04 turbocharger on the TSI engine. | VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com
KO4-015 K04-015 Upgraded K03 Turbo VW Passat Audi A4 1.8T 20V, Audi Turbos, XS Power Inc.
New Turbochargers Direct Replacement K04 Turbo For Audi A4 & VW Passat 1.8T TUR-100334-
Turbo compatible for VW Golf Sport Beetle compatible for Audi A3 A4 K04-001 K04 1.8T Turbocharger
HT300 Turbocharger Upgrade for 1.6T (Mechanical Wastegate) – N75 MotorSports
Funk Motorsport K03 / K04 Turbo Blanket - UK BASED
VW Audi Upgrade Larger K04 Turbo Passat A4 V This turbo is larger than stock K03 turbo 1.8T