$950 shipped to lower 48. Includes 03 RS6 ECU with O.CT programming. TCU not included. I am the second owner of this O.CT ECU, and it's time to find a new home as the beast is going back to stock.

Adds over 50hp and 85 ft lbs (per O.CT specs) to bring the beast to a healthy 500+ hp and 500 ft lbs. 155mph speed limiter goes away too (personally verified that the RS6 is 185+ mph capable with this ECU!)

Email me with questions.

Thanks,

Jason
frencjas@hotmail.com