Best ECU/TCU tunes???

[4everRS]

Regardless of hp claims, APR is one of the best tunes out there for the RS6. I had it on my other RS6 and its a rocket, with excellent data logs. The problem with it is that its waaaay too much money. I believe they still want almost 3k for the ECU/TCU combo. With time has come competition in the pricing. I particularly liked the different modes, and the ability to do throttle body adaptation. No one to this day offers that. I still when with Viper on my current rs6. Much better pricing, and you get all of what makes APR great, without the TB adaptation, and selectable modes. Also without the high price.

I have MTM for both the ECU and TCU, great but the ECU is very expensive compared to the rest. I would use whoever (listed above) that can provide real numbers (not ARP, etc) who's are a little exaggerated. I would also focus on the intake so the beast can inhale efficiently also. I have Dahlback racing intake which is really great, but pricey.
Best of luck with your search.

[dab]

Regardless of hp claims, APR is one of the best tunes out there for the RS6. I had it on my other RS6 and its a rocket, with excellent data logs. The problem with it is that its waaaay too much money. I believe they still want almost 3k for the ECU/TCU combo. With time has come competition in the pricing. I particularly liked the different modes, and the ability to do throttle body adaptation. No one to this day offers that. I still when with Viper on my current rs6. Much better pricing, and you get all of what makes APR great, without the TB adaptation, and selectable modes. Also without the high price.

I have the apr ecu/tcu which personally was one of the best investments at $2400 seven years ago. Expensive compared to what, $ per enjoyment ratio can't be beat. When you can spend the same amount of money on new exhaust for 10-20 hp gain. Initial hp gain was 75 hp and 125 lbs of torque with the 93 octance setting, with the 100 octane setting plus aces iv off the charts. Look at what apr is doing to 2013 s7, s6, solid stuff.

[DHall1]

You could always give these guys a try.






The results are amazing. But if you call them..."We have never produced a lean tune for the RS6" I got the data logs from this car boys.