Originally Posted by
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.