do88 pressure hoses for Audi S4 and A6 2.7L BiTurbo engines (1999–2002; AGB/AJK/AZA) are available in black as replacement turbo/intercooler charge-air lines. Designed for the specified engine codes and years, these hoses reestablish boost routing while preserving a factory-style underhood look. They are formed to match the original routing on those Audi applications.
do88 99-02 Audi S4/A6 2.7L BiTurbo (AGB/AJK/AZA) Pressure Hoses - Black