BorgWarner K04 Turbocharger Upgrade – B5 S4 & C5 2.7T

BorgWarner RS4 K04 Turbocharger Upgrade – B5 S4 & C5 2.7T

Genuine BorgWarner RS4 turbo upgrade for your B5 S4, A6, & Allroad 2.7T engine. These RS4-K04’s will bolt up to your 2.7T downpipes/catalytic converters, and exhaust manifolds.

Includes both Left (K04-025) and Right (K04-26) Turbochargers. 

Vehicle Fitment:

• Audi B5 S4 – 2.7T
• Audi C5 A6 – 2.7T
• Audi C5 Allroad – 2.7T

Please Note:

• This is not a complete turbo upgrade kit
• Does NOT include hardware or the RS4/modified intake pipes necessary for a complete install. 
• RS4 turbochargers have the ability to produce too much boost & air volume for your stock fuel system & programming
• 2003 and 2004 A6 and Allroad 2.7T’s with automatic transmissions have a different downpipe design, and some modification is required for installation.