From B5 to B8.5, GIAC has been an industry leader for making the fastest Audi ® S4 and RS4 cars on the planet. We are proud to now carry this twenty two year tradition of excellence to the B9 chassis, with the release of OBD flashing for B9 RS5 as well as the 2021 model year of the B9 S4 and S5. The installation process is quick, reliable and can be done at any one of the many GIAC dealers located around the world.
Peak Gains | Largest Gains At Any RPM |
|
93 Octane | + 71 HP and + 78 ft-lbs |
+ 80 HP and + 84 ft-lbs |
91 Octane | + 35 HP and + 66 ft-lbs |
+ 64 HP and + 77 ft-lbs |
Peak Gains | Largest Gains At Any RPM |
|
93 Octane | + 67 HP and + 79 Ft-Lbs |
+ 73 HP and + 82 Ft-Lbs |
91 Octane | + 40 HP and + 68 Ft-Lbs |
+ 60 HP and + 68 Ft-Lbs |