COVID19 Update: Delays in shipping still exist due to the COVID19 situation, please email us if your parts are urgent, and we can advise more accurate delivery times.


Add your deal, information or promotional text

Chip Tuning, Stage 3 2.7T, K04

SKU: 034-103-2218

Manufacturer: 034Motorsport

034Motorsport is proud to offer our 034EFI Stage 3 K04 Chip Tuning for the Audi 2.7T.

This tune is capable of over 400WHP on 91 octane with proper supporting modifications (intake, intercoolers, downpipes, exhaust) and retains electronic boost control via the factory N75 valve.


  • 034EFI ECU Upgrade for K04 Style Turbos


Note: Requires K04 turbochargers, 85mm Hitachi MAF housing, and 550cc Bosch EV14 fuel injectors. Hitachi MAF sensor upgrade is required for early B5 S4 models equipped with Bosch MAF sensor.

Upgraded fuel pump is strongly recommended.

Please Note: Select proper engine code and turbocharger configuration below.

Typical powerband for a 91 Octane 034EFI-Tuned Stage 3 K04 2.7T with proper supporting modifications:

This dyno is an average result, but final horsepower and torque figures can vary depending on supporting modifications.





  • This product is sold for racing and off-road use only.
  • This product is not CARB or EPA compliant, this product is not authorized for use in California on smog controlled vehicles.
  • By purchasing this product, you understand this product is sold for competition use on closed roads and is not legal for use in highway or street vehicles.