Audi 4.2 V8 FSI Tuning
Supported in 8 Audi models, 1997+.
Audi
31 supported 4.2 V8 FSI applications
Models With the Audi 4.2 V8 FSI
All Supported Audi 4.2 V8 FSI Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| A6 | 2008+ | C6-FL | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| A6 | 2008+ | C6-FL | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| A6 | 2008+ | C6-FL | 350 hp | ECU Bosch MED9.1.x | AutoTuner |
| A8 | 2010+ | D4 | 372 hp | ECU Bosch MED17.1.1 | AutoTuner |
| A8 | 2010+ | D4 | 372 hp | ECU Bosch MED17.1.1 | AutoTuner |
| A8 | 2010+ | D4 | 372 hp | TCU ZF ALx51 | AutoTuner |
| A8 | 2003+ | D3 | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| A8 | 2003+ | D3 | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| A8 | 2003+ | D3 | 350 hp | ECU Bosch MED9.1.x | AutoTuner |
| Q7 | 2006+ | 4L | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| Q7 | 2006+ | 4L | 350 hp | ECU Bosch MED9.1 | AutoTuner |
| Q7 | 2006+ | 4L | 350 hp | ECU Bosch MED9.1.x | AutoTuner |
| R8 | 2006+ | 42 | 420 hp | ECU Bosch MED9.1 | AutoTuner |
| R8 | 2006+ | 42 | 430 hp | ECU Bosch MED9.1 | AutoTuner |
| R8 | 2006+ | 42 | 420 hp | ECU Bosch MED9.1 | AutoTuner |
| R8 | 2006+ | 42 | 430 hp | ECU Bosch MED9.1 | AutoTuner |
| R8 | 2006+ | 42 | 420 hp | ECU Bosch MED9.1.x | AutoTuner |
| R8 | 2006+ | 42 | 430 hp | ECU Bosch MED9.1.x | AutoTuner |
| RS4 | 2012+ | 8K | 450 hp | ECU Bosch MED17.1.1 | AutoTuner |
| RS4 | 2012+ | 8K | 450 hp | TCU Temic DL501 | AutoTuner |
| RS4 | 2012+ | 8K | 450 hp | TCU Temic DL501 | AutoTuner |
| RS4 | 2006+ | B7 | 420 hp | ECU Bosch MED9.1 | AutoTuner |
| RS4 | 2006+ | B7 | 420 hp | ECU Bosch MED9.1 | AutoTuner |
| RS4 | 2006+ | B7 | 420 hp | ECU Bosch MED9.1.x | AutoTuner |
| RS5 | 2010+ | B8 | 450 hp | ECU Bosch MED17.1.1 | AutoTuner |
| RS5 | 2010+ | B8 | 450 hp | TCU Temic DL501 | AutoTuner |
| RS5 | 2010+ | B8 | 450 hp | TCU Temic DL501 | AutoTuner |
| S5 | 2007+ | B8 | 354 hp | ECU Bosch MED9.1 | AutoTuner |
| S5 | 2007+ | B8 | 354 hp | ECU Bosch MED9.1 | AutoTuner |
| S5 | 2007+ | B8 | 354 hp | ECU Bosch MED9.1.x | AutoTuner |
| S6 | 1997+ | C5 | 360 hp | ECU Bosch ME7.1 | AutoTuner |
About Audi 4.2 V8 FSI tuning
We tune the Audi 4.2 V8 FSI in 31 applications across the A6, A8, Q7, R8, RS4, RS5, S5, S6, from 1997+, in gasoline form, with stock outputs of 350-450 hp. Calibrations are written on AutoTuner for your exact hardware and fuel, then proven on our Dynojet 424xLC2 in Jenison, MI.
This engine runs on: Bosch ME7.1, Bosch MED9.1, Bosch MED9.1.x, Bosch MED17.1.1, Temic DL501, ZF ALx51.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.