Audi Rs6 C7 Performance 4.0TFSI 605hp – #etuners Stage3 for Turbosystems Stg1 and 98/100ron. A big project completed. Upgrade specifications 
Stock engine @turbosystems.info stg 1 *V3* turbo upgrade Turbosystem performance turbo actuators Turbosystem upgraded throttle body *TGK...
Audi Rs6 C7 Performance 4.0TFSI 605hp – Stage3 for Turbosystems STG1/V3 and 98/100ron
