This improves on 100 octane to a gain of 14 horsepower at the wheels for a peak of 366 all wheel horsepower. As sad as it is to say, the S5 with the 3.0 TFSI supercharged six cylinder makes more sense as a tuning platform than the 4.2 V8 in the RS5. When APR releases a supercharger for the B8 RS5 things may change. Still, a naturally aspirated V8 with an 8400 RPM redline is pretty sweet and if one wants a little more out of it APR's tune is a good place to look especially for $699.
| Stock As Measured by Audi |
Stock - 93 Octane (R+M)/2 As Measured by APR |
91 Octane (R+M)/2 95 Octane RON |
93 Octane (R+M)/2 98 Octane RON |
100 Octane (R+M)/2 104 Octane RON |
|
|---|---|---|---|---|---|
| Rev Limit | 8400 RPM | 8400 RPM | 8400 RPM | 8400 RPM | 8400 RPM |
| Speed Limit | Max Speed Limited | Max Speed Limited | Unlimited | Unlimited | Unlimited |
| Peak Horsepower (HP) | 450 HP | 450 HP | Uneasured | 458 HP | 466 HP |
| Peak Torque (FT-LBS) | 317 TQ | 324 TQ | Uneasured | 330 TQ | 335 TQ |
| Max Horsepower Increase over Stock | Uneasured | 10 HP @ 3250 RPM | 18 HP @ 7150 RPM | ||
| Max FT-LBS of Torque Increase over Stock | Uneasured | 16 TQ @ 3250 RPM | 16 TQ @ 2350 RPM |
| Program Mode | 0-60 MPH | 0-100 MPH | 60-120 MPH | 60-130 MPH |
|---|---|---|---|---|
| Data collected at the same location via a Racelogic P-Box with 93 (R+M)/2 fuel, launch control, ESP/ASR off, Dynamic mode and Sport mode. May not be comparable to data collected in other locations. | ||||
| Best Measured Stock - 93 (R+M)/2 Octane | 4.3 seconds | 9.8 seconds | 9.1 seconds | 11.7 seconds |
| Best Measured APR Stage I - 93 (R+M)/2 Octane | 4.0 seconds | 9.1 seconds | 9.0 seconds | 11.3 seconds |
