034 is across the Bay from me and well known for their Audi aftermarket products. I had a nice conversation with one of their people, who explained that they had developed their own RS6 tune in response to a customer who was dissatisfied with the results he had from a well known tuner. The attached scan shows the results of the testing on their Mustang dyno. I did not do a baseline pull, but included in the scan is the result from the baseline pull from another customer. Don't dwell on the absolute numbers. Mustang dyno reads typically well under Dynojet, and it is the comparison with stock that should be considered. This was also on 91 octane California gas, and the dyno bay was about 100 degrees that afternoon without a fan. Bottom line, about a 11% improvement in peak HP, but more importantly, 29% improvement in peak torque and with a nice flat curve from about 3000 to 5000 rpm. I had APR tune in original RS6, never had that dyno'ed, but this now pulls better than my old beast. If you guesstimate engine HP and torque from stock Audi numbers, this would mean ~500 hp and 536 lb-ft peak torque. And yes, I had their TCU tune as well to go with the Level 10 transmission.