
Through optimization of the factory ECU's boost, fueling, and timing maps, 034Motorsport C5 Audi RS6 Tuning safely yields huge increases in horsepower and torque from the twin-turbo V8 powerplant, resulting in a much broader powerband. 034Motorsport's proprietary changes to the ECU have also addressed other shortcomings of the factory calibrations by increasing the rev limit to 6,800 RPM, and enhancing part-throttle mapping for improved drivability.
After extensive analysis of the factory Tiptronic TCU (Transmission Control Unit) mapping, 034Motorsport engineers were able to make calibration improvements which are part of the C5 Audi RS6 Tip Chip Transmission Software Upgrade. This performance transmission software increases shifting speed and optimizes shift points, while also raising the maximum shift point to 6,800 RPM in order to make use of the Stage 1 ECU Upgrade's broader powerband.
C5 Audi RS6 Stage 1 Tuning Features:
- Developed In-House on the Street, Track, and 034Motorsport's Chassis Dyno
- Optimized Boost, Timing & Fueling Maps for Increased Horsepower & Torque with 91 Octane Fuel
- Peak Boost Increased to 17.5 PSI
- 93 Octane & 100 Octane Tunes Available Upon Request
- Increased Rev Limiter to 6,800 RPM (034Motorsport C5 Audi RS6 Tiptronic TCU "Tip Chip" Upgrade Recommended)
- Speed Limiter (Governor) Removed
- Improved Throttle Response & Power Delivery
- Refined Throttle Mapping for Part Throttle Drivability
- Increased Fuel Economy
C5 Audi RS6 "Tip Chip" Tuning Features:
- Developed In-House by 034Motorsport
- Raised TCU Rev Limiter to 6,800 RPM
- Increased Shift Speed
- Optimized Shift Points
Application Guide:
- 2003 - 2004 Audi RS6 4.2T (C5)
Available Tunes:
- C5 (2003-2004) Audi RS6 Stage 1 Tuning | Performance ECU Upgrade
- C5 (2003-2004) Audi RS6 "Tip Chip" | Performance Transmission Software Upgrade
- Option 1: Flashed directly through your vehicle's existing OBD-II Diagnostic Port by 034Motorsport.
- Option 2: Flashed directly through your vehicle's existing OBD-II Diagnostic Port by you, using the PL34 Handheld Flash-Loader. You will receive a free second map with purchase of a PL34 Handheld Flash-Loader! (Sold Separately)

Dyno Charts:
Wheel Horsepower Dyno Plot | 91 Octane | Stage 1 Tune for C5 Audi RS6 4.2T
Need to know how much is a stage two flash car has upgraded intercooler and piping downpipe is there anything else I need to get to complete the package and a full price with the flash already upload on handheld programmer
Marvin,
The total for Stage 2 Software with PL34 Flash-Loader would be $1,050. https://store.034motorsport.com/c5-audi-rs6-4-2t-stage-1-tuning-performance-ecu-upgrade-v8-biturbo.html
We also recommend getting our TCU Tune (Tip Chip) done at the same time: https://store.034motorsport.com/c5-audi-rs6-4-2t-tip-chip-performance-tiptronic-transmission-tuning-tcu-software-upgrade.html
We'll email you shortly!
Cheers,
The 034Motorsport Team
Do you have any Info available for the 93 Octane tune?
Hello!
Is the TCU Flash also done via OBD2?
Can the PL34 do this Job?
Which flasher can do TCU box?
regards